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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 copy(self):
 """ Return a deep copy of the current scene Returns copied : trimesh.Scene Copy of the current scene """

        # use the geometries copy method to
        # allow them to handle references to unpickle-able objects
        geometry = {n: g.copy() for n, g in self.geometry.items()}
        # create a new scene with copied geometry and graph
        copied = Scene(geometry=geometry,
                       graph=self.graph.copy())
        return copied