rclpy.action.ActionServer callback 'goal_handle' type

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Hi, When opening an action server it looks something like this:

self.move_up_action_server = ActionServer(self, MoveVerticalAction, 'move_vertical', self.move_up_callback)

With the callback being:

def move_up_callback(self, goal_handle):

I couldn't find anywhere what is the type of goal_handle. Seems like it has goal_handle.request, goal_handle.publish_feedback, goal_handle.succeed. Maybe some of you know what is the python type I should use?

Thanks