Question Value entry for "Hinge joint 2d motor set" node

Hello everybody. I'm new in unity visual scripting and i want to make a little pinball game 2d. To rotate my flipper i added a hinge joint 2d to it and i want to use motor when i hit the left arrow key. I don't know which kind of value accepts my "Hinge joint set motor" node. I tried with float or integer but it doesn't accept it. If someone could help me ...