code: def test_speeds(
      self,
      _empty_system_setup,
      args,
      kwargs,
      exp_u_ind,
      exp_u_dep,
      exp_u,
  ):
      # Test add_speeds
      self.system.add_speeds(*args, **kwargs)
      assert self.system.u_ind[:] == exp_u_ind
      assert self.system.u_dep[:] == exp_u_dep
      assert self.system.u[:] == exp_u
      self._empty_system_check(exclude=("u_ind", "u_dep", "u"))
      # Test setter for u_ind and u_dep
      self.system.u_ind = exp_u_ind
      self.system.u_dep = exp_u_dep
      assert self.system.u_ind[:] == exp_u_ind
      assert self.system.u_dep[:] == exp_u_dep
      assert self.system.u[:] == exp_u
      self._empty_system_check(exclude=("u_ind", "u_dep", "u"))
  
imports: import pytest
  from sympy.core.symbol import symbols
  from sympy.core.sympify import sympify
  from sympy.functions.elementary.trigonometric import cos, sin
  from sympy.matrices.dense import eye, zeros
  from sympy.matrices.immutable import ImmutableMatrix
  from sympy.physics.mechanics import Force, KanesMethod, LagrangesMethod, Particle, PinJoint, Point, PrismaticJoint, ReferenceFrame, RigidBody, Torque, TorqueActuator, System, dynamicsymbols
  from sympy.simplify.simplify import simplify
  from sympy.solvers.solvers import solve
label_desc: Use image node_id 8 for calling the TestSystem obj's underlying member method code with example usage: obj.test_speeds(_empty_system_setup, args, kwargs, exp_u_ind, exp_u_dep, exp_u) without return types