code: def build_op():
      """Return function to build nested operator."""
  
      return qml.prod(
          qml.RX(1, 0) ** 1,
          qml.RY(1, 1),
          qml.prod(qml.adjoint(qml.PauliX(2)), qml.RZ(1, 3)),
          qml.RX(1, 4),
      )
  
imports: from functools import partial
  import pytest
  import pennylane
  from pennylane.ops import Prod
  from pennylane.tape import QuantumScript
  from pennylane.wires import Wires
label_desc: Use image node_id 1 for calling a global function with example usage: build_op() and returns: qml