code: def test_process_wires(custom_wires, n_wires):
      r"""Test if _process_wires handels different combinations of input types correctly."""
  
      wires = qml.qchem.convert._process_wires(custom_wires, n_wires)
  
      assert isinstance(wires, qml.wires.Wires)
  
      expected_length = (
          n_wires
          if n_wires is not None
          else len(custom_wires)
          if custom_wires is not None
          else 1
      )
      if len(wires) > expected_length:
          assert isinstance(custom_wires, dict)
          assert len(wires) == max(custom_wires) + 1
      else:
          assert len(wires) == expected_length
  
      if custom_wires is not None and n_wires is not None:
          if not isinstance(custom_wires, dict):
              assert wires == qml.qchem.convert._process_wires(
                  custom_wires[:n_wires], n_wires
              )
          else:
              assert wires == qml.qchem.convert._process_wires(
                  custom_wires, n_wires
              )
  
imports: import os
  import sys
  import pytest
  import pennylane
  from pennylane import numpy
  from pennylane import qchem
  from pennylane.operation import disable_new_opmath, enable_new_opmath
label_desc: Use image node_id 16 for calling a global function with example usage: test_process_wires(custom_wires, n_wires) without return types