fix: use correct crewai imports and add type hints

Author: Sherwin

lib/crewai/src/crewai/tools/agent_utility_tools.py

@@ -1,6 +1,6 @@
 import uuid
 from datetime import datetime
-from langchain.tools import tool
+from crewai.tools import tool
 
 class AgentUtilityTools:
     """
@@ -9,7 +9,7 @@ class AgentUtilityTools:
     """
 
     @tool("Generate Unique ID")
-    def generate_id(tool_input=None):
+    def generate_id(tool_input: str = None) -> str:
         """
         Generates a unique Version 4 UUID. 
         Useful for tagging tasks, creating transaction IDs, or tracking agent actions.
@@ -18,10 +18,10 @@ def generate_id(tool_input=None):
         return str(uuid.uuid4())
 
     @tool("Get Current Time")
-    def get_current_time(tool_input=None):
+    def get_current_time(tool_input: str = None) -> str:
         """
         Returns the current system date and time.
         Useful for agents that need to schedule events, check deadlines, 
         or know 'what day is it today' to avoid hallucinations.
         """
-        return datetime.now().strftime("%Y-%m-%d %H:%M:%S")
+        return datetime.now().strftime("%Y-%m-%d %H:%M:%S")