code: def circuit_1():
      """Circuit 1 with quantum chemistry gates"""
      qml.RZ(1.0, wires=[0])
      qml.PhaseShift(1.0, wires=[1])
      qml.SingleExcitation(2.0, wires=[1, 2])
      qml.PauliX(0)
      return qml.expval(qml.PauliZ(1))
  
imports: import math
  from functools import reduce
  import pytest
  import pennylane
  from pennylane.transforms.decompositions.clifford_t_transform import check_clifford_t, clifford_t_decomposition, _rot_decompose, _one_qubit_decompose, _two_qubit_decompose, _CLIFFORD_T_GATES
  from pennylane.transforms.optimization.optimization_utils import _fuse_global_phases
label_desc: Use image node_id 1 for calling a global function with example usage: circuit_1() and returns: qml