def __init__(self, a, b, phase, ratchet):
        self._constraint = cp.cpRatchetJointNew(a._body, b._body, phase, ratchet)
        self._ccontents = self._constraint.contents
        self._dsc = cp.cast(self._constraint, ct.POINTER(cp.cpRatchetJoint)).contents
        self._set_bodies(a,b)
returns a string of binary binary data for the stl file
dataset/ETHPy150Open estevaofon/angry-birds-python/pymunk-4.0.0/pymunk/constraint.py/RatchetJoint.__init__--crossover with--dataset/ETHPy150Open thearn/stl_tools/stl_tools/numpy2stl.py/_build_binary_stl