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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 load_scene(self, scene_path, start=False):
 """ Loads a scene on the V-REP server. :param str scene_path: path to a V-REP scene file :param bool start: whether to directly start the simulation after loading the scene .. note:: It is assumed that the scene file is always available on the server side. """

        self.stop_simulation()

        if not os.path.exists(scene_path):
            raise IOError("No such file or directory: '{}'".format(scene_path))

        self.call_remote_api('simxLoadScene', scene_path, True)

        if start:
            self.start_simulation()