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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 _register_options(self, api_interface):
 # type: (ApiInterfaceBase) -> None """ Register CORS options endpoints. """

        op_paths = api_interface.op_paths(collate_methods=True)
        for path, operations in op_paths.items():
            if api.Method.OPTIONS not in operations:
                self._options_operation(api_interface, path, operations.keys())