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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def static_to_constantrotating(frame_i, frame_r, w, t=None):
 """ Transform from an inertial static frame to a rotating frame. Parameters frame_i : `~gala.potential.StaticFrame` frame_r : `~gala.potential.ConstantRotatingFrame` w : `~gala.dynamics.PhaseSpacePosition`, `~gala.dynamics.Orbit` t : quantity_like (optional) Required if input coordinates are just a phase-space position. Returns ------- pos : `~astropy.units.Quantity` Position in rotating frame. vel : `~astropy.units.Quantity` Velocity in rotating frame. """

    return _constantrotating_static_helper(frame_r=frame_r, frame_i=frame_i,
                                           w=w, t=t, sign=1.)