added r_counter function

app.py

@@ -18,6 +18,18 @@ def my_custom_tool(arg1:str, arg2:int)-> str: #it's import to specify the return
     """
     return "What magic will you build ?"
 
+def r_counter(arg1:str)-> int: #it's import to specify the return type
+    #Keep this format for the description / args / args description but feel free to modify the tool
+    """A tool that counts the number of r's in a string
+    Args:
+        arg1: an input string
+    """
+    counter = 0
+    for c in arg1:
+        if c == r:
+            counter += 1
+    return counter
+
 @tool
 def get_current_time_in_timezone(timezone: str) -> str:
     """A tool that fetches the current local time in a specified timezone.
@@ -57,7 +69,7 @@ with open("prompts.yaml", 'r') as stream:
     
 agent = CodeAgent(
     model=model,
-    tools=[image_generation_tool, get_current_time_in_timezone, final_answer], ## add your tools here (don't remove final answer)
+    tools=[r_counter, image_generation_tool, get_current_time_in_timezone, final_answer], ## add your tools here (don't remove final answer)
     max_steps=6,
     verbosity_level=1,
     grammar=None,