def do(self, tasks: list[Task] | Task | None = None):
        """
        Execute multi-agent operations with the predefined agents and tasks.
        
        Args:
            tasks: Optional list of tasks or single task to execute. If not provided, uses tasks from initialization.
        
        Returns:
            The response from the multi-agent operation
        """
        global latest_upsonic_client
        from ..latest_upsonic_client import latest_upsonic_client

        # Get or create client for agents without custom clients
        the_client = get_or_create_client()
        
        # Use provided tasks or fall back to initialized tasks
        tasks_to_execute = tasks if tasks is not None else self.tasks
        if not isinstance(tasks_to_execute, list):
            tasks_to_execute = [tasks_to_execute]
        
        # Register tools for all tasks regardless of client
        for task in tasks_to_execute:
            the_client = register_tools(the_client, task.tools)
            # Also register tools for agents with custom clients
            for agent in self.agents:
                if agent.client is not None:
                    agent.client = register_tools(agent.client, task.tools)
        
        # Update the global client reference
        if latest_upsonic_client is None:
            latest_upsonic_client = the_client

        # Execute the multi-agent call
        return self.multi_agent(the_client, self.agents, tasks_to_execute, self.llm_model)

        Execute multi-agent operations with the predefined agents and tasks.
        
        Args:
            tasks: Optional list of tasks or single task to execute. If not provided, uses tasks from initialization.
        
        Returns:
            The response from the multi-agent operation
        
src/upsonic/client/team/team.py