code: def _build_pauli_rep(self):
      return qml.pauli.PauliSentence({})
  
imports: from copy import copy
  import numpy
  import pytest
  import pennylane
  from pennylane.operation import DecompositionUndefinedError
  from pennylane.ops.op_math import CompositeOp, Prod, Sum, SProd
  from pennylane.wires import Wires
label_desc: Use image node_id 1 for calling the ValidOp obj's underlying member method code with example usage: obj._build_pauli_rep() and returns: qml