code: def test_at_pin_joint_pin_joint_not_pin_joint_invalid(self):
      with pytest.raises(TypeError):
          _ = TorqueActuator.at_pin_joint(self.torque, Symbol("pin"))
  
imports: import pytest
  from sympy import S, Matrix, Symbol, SympifyError, sqrt
  from sympy.physics.mechanics import ActuatorBase, Force, ForceActuator, KanesMethod, LinearDamper, LinearPathway, LinearSpring, Particle, PinJoint, Point, ReferenceFrame, RigidBody, TorqueActuator, Vector, dynamicsymbols
  from sympy.core.expr import Expr
label_desc: Use image node_id 12 for calling the TestTorqueActuator obj's underlying member method code with example usage: obj.test_at_pin_joint_pin_joint_not_pin_joint_invalid() without return types