code: def test_to_loads(self):
      self.pB.set_pos(self.pA, self.q * self.N.x)
      damper = LinearDamper(self.damping, self.pathway)
      direction = self.q**2 / self.q**2 * self.N.x
      pA_force = self.damping * self.dq * direction
      pB_force = -self.damping * self.dq * direction
      expected = [Force(self.pA, pA_force), Force(self.pB, pB_force)]
      assert damper.to_loads() == expected
  
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 10 for calling the TestLinearDamper obj's underlying member method code with example usage: obj.test_to_loads() without return types