code: def get_tool_context(self, tool_alias):
          
          tools_dict = self.get_tools()
          data = tools_dict.get(tool_alias)
          if data:
              return data["context_name"]
          return None
docs: Given a visible tool alias, return the name of the context it
          belongs to.
  
          Args:
              tool_alias (str): Tool alias to search for.
  
          Returns:
              (str): Name of the context that exposes a visible instance of this
              tool alias, or None if the alias is not available.