code: def _import_of():
      """Import openfermion and openfermionpyscf."""
      try:
          # pylint: disable=import-outside-toplevel, unused-import, multiple-imports
          import openfermion, openfermionpyscf
      except ImportError as Error:
          raise ImportError(
              "This feature requires openfermionpyscf. "
              "It can be installed with: pip install openfermionpyscf."
          ) from Error
  
      return openfermion, openfermionpyscf
  
file_path: pennylane/pennylane/qchem/openfermion_obs.py
imports: import os
  import numpy
  import pennylane
  from pennylane.operation import active_new_opmath
label_desc: Use image node_id 1 for calling a global function with example usage: _import_of() and returns: openfermion,  openfermionpyscf