bug fixing docstring smolagent methods

geminiAgent.py

@@ -1,7 +1,7 @@
 import os
 import time
 import operator
-from smolagents import CodeAgent,DuckDuckGoSearchTool, HfApiModel, load_tool, tool, WikipediaSearchTool, LiteLLMModel
+from smolagents import CodeAgent,DuckDuckGoSearchTool, tool, WikipediaSearchTool, LiteLLMModel
 import datetime
 import requests
 import pytz
@@ -27,7 +27,10 @@ def ocr_tool(image: str) -> str:
     A tool that performs OCR processing on an image.
 
     Args: 
-        image: path for the image
+        image: path for the image.
+
+    Returns:
+        Text extracted from the image.
     """
     image = Image.open(image)
     return pytesseract.image_to_string(image)
@@ -38,7 +41,10 @@ def read_csv(csv: str) -> str:
     Reads a CSV file and returns its contents as a human-readable string.
 
     Args:
-        csv: path for the csv file
+        csv: path for the csv file.
+    
+    Returns:
+        A string representation of the CSV file contents.
     """
     csv_file = pd.read_csv(csv)
     
@@ -63,6 +69,9 @@ def read_excel(excel_path: str) -> str:
 
     Args:
         excel_path: The path to the Excel file.
+    
+    Returns:
+        A string representation of the Excel file contents.
     """
     try:
         df = pd.read_excel(excel_path)