Fixed pandas typing

tools.py

@@ -262,19 +262,20 @@ def read_excel(path: str, **kwargs) -> pd.DataFrame:
     return pd.read_excel(path)
 
 
-def pandas_column_sum(df: pd.DataFrame, column_name: str, **kwargs) -> float:
+def pandas_column_sum(
+    pandas_column_values: list[int | float], column_name: str, **kwargs
+) -> float:
     """
     Computes sum on pandas dataframe column
 
     Args:
-        df: Pandas dataframe
+        pandas_column_values: List with float or integer pandas values
         column_name: Name of the column
 
     Return:
     Sum of the column
     """
-    df[column_name] = df[column_name].astype(float)
-    return df[column_name].sum()
+    return sum(pandas_column_values)
 
 
 def final_answer(query: str, answer: str, **kwargs) -> str: