code: def _(op: PauliX):
      return PauliSentence({PauliWord({op.wires[0]: X}): 1.0})
  
imports: from functools import reduce, singledispatch
  from itertools import product
  from operator import matmul
  from typing import Union, Tuple
  import pennylane
  from pennylane.operation import Tensor
  from pennylane.ops import Hamiltonian, Identity, PauliX, PauliY, PauliZ, Prod, SProd, Sum
  from pennylane.ops.qubit.matrix_ops import _walsh_hadamard_transform
  from .pauli_arithmetic import I, PauliSentence, PauliWord, X, Y, Z, op_map
  from .utils import is_pauli_word
label_desc: Use image node_id 6 for calling a global function with example usage: _(op) and returns: PauliSentence