Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```


Write a complete Python function with this exact signature.
Signature:
def is_even(number):
Requirement: Return True when a number is even.
Return Python code only. Do not include prose or Markdown fences.

def is_even(number):
    return number % 2 == 0

Here is the function:
```python
def is_even(number):
    return number % 2 == 0
```


Write a complete Python function with this exact signature.
Signature:
def last_item(items):
Requirement: Return the last item in a list.
Return Python code only. Do not include prose or Markdown fences.

def last_item(items):
    return items[-1]

Here is the function:
```python
def last_item(items):
    return items[-1]
```


Write a complete Python function with this exact signature.
Signature:
def add_numbers(a, b):
Requirement: Return the sum of two numbers.
Return Python code only. Do not include prose or Markdown fences.

def add_numbers(a, b):
    return a + b

Here is the function:
```python
def add_numbers(a, b):
    return a + b
```