def items(self) -> Iterator[tuple[TKey, cirq.Pauli]]:
        """Returns (cirq.Qid, cirq.Pauli) pairs representing 1-qubit operations of pauli string."""
        for k, v in self.pauli_int_dict.items():
            yield k, _INT_TO_PAULI[v - 1]
Returns (cirq.Qid, cirq.Pauli) pairs representing 1-qubit operations of pauli string.
cirq-core/cirq/ops/pauli_string.py