Return an equivalent operation on new qubits with its Pauli string
        mapped to new qubits.

        new_pauli_string = self.pauli_string.map_qubits(qubit_map)

def map_qubits(self: TSelf_PauliStringGateOperation,
                   qubit_map: Dict[raw_types.Qid, raw_types.Qid]
                  ) -> TSelf_PauliStringGateOperation:
        """Return an equivalent operation on new qubits with its Pauli string
        mapped to new qubits.

        new_pauli_string = self.pauli_string.map_qubits(qubit_map)
        """