code: def join_to(self, joint, other_body=None, **kwargs):
          '''Connect this body to another one using a joint.
  
          This method creates a joint to fasten this body to the other one. See
          :func:`World.join`.
  
          Parameters
          ----------
          joint : str
              The type of joint to use when connecting these bodies.
          other_body : :class:`Body` or str, optional
              The other body to join with this one. If not given, connects this
              body to the world.
          '''
          self.world.join(joint, self, other_body, **kwargsf join_to(self, joint, other_body=None, **kwargs):
          '''Connect this body to another one using a joint.
  
          This method creates a joint to fasten this body to the other one. See
          :func:`World.join`.
  
          Parameters
          ----------
          joint : str
              The type of joint to use when connecting these bodies.
          other_body : :class:`Body` or str, optional
              The other body to join with this one. If not given, connects this
              body to the world.
          '''
          self.world.join(joint, self, other_body, **kwargs)
docs: Connect this body to another one using a joint.
  
          This method creates a joint to fasten this body to the other one. See
          :func:`World.join`.
  
          Parameters
          ----------
          joint : str
              The type of joint to use when connecting these bodies.
          other_body : :class:`Body` or str, optional
              The other body to join with this one. If not given, connects this
              body to the world.