def by_conversation_id(self,conversation_id: str) -> ConversationItemRequestBuilder:
        """
        Provides operations to manage the conversations property of the microsoft.graph.group entity.
        param conversation_id: The unique identifier of conversation
        Returns: ConversationItemRequestBuilder
        """
        if conversation_id is None:
            raise TypeError("conversation_id cannot be null.")
        from .item.conversation_item_request_builder import ConversationItemRequestBuilder

        url_tpl_params = get_path_parameters(self.path_parameters)
        url_tpl_params["conversation%2Did"] = conversation_id
        return ConversationItemRequestBuilder(self.request_adapter, url_tpl_params)

        Provides operations to manage the conversations property of the microsoft.graph.group entity.
        param conversation_id: The unique identifier of conversation
        Returns: ConversationItemRequestBuilder
        
msgraph/generated/groups/item/conversations/conversations_request_builder.py