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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 _retrieve_info(self, request):
 """Retrieve information about the service account. Updates the scopes and retrieves the full service account email. Args: request (google.auth.transport.Request):
 The object used to make HTTP requests. """

        info = _metadata.get_service_account_info(
            request,
            service_account=self._service_account_email)

        self._service_account_email = info['email']
        self._scopes = info['scopes']