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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 path_helper(self, operations, urlspec, **kwargs):
 """Path helper that allows passing a Tornado URLSpec or tuple."""

        if not isinstance(urlspec, URLSpec):
            urlspec = URLSpec(*urlspec)
        for operation in self._operations_from_methods(urlspec.handler_class):
            operations.update(operation)
        if not operations:
            raise APISpecError(
                'Could not find endpoint for urlspec {0}'.format(urlspec),
            )
        params_method = getattr(urlspec.handler_class, list(operations.keys())[0])
        operations.update(self._extensions_from_handler(urlspec.handler_class))
        return self.tornadopath2openapi(urlspec, params_method)