docs: def main(codelabel, submit):
      """Command line interface for testing and submitting calculations.
  
      This script extends submit.py, adding flexibility in the selected code/computer.
  
      Run './cli.py --help' to see options.
      """
      code = Code.get_from_string(codelabel)
  
      # set up calculation
      calc = code.new_calc()
      calc.label = "compute rips from distance matrix"
      calc.set_max_wallclock_seconds(1 * 60)
      calc.set_withmpi(False)
      calc.set_resources({"num_machines": 1, "num_mpiprocs_per_machine": 1})
  
      # Prepare input parameters
      from aiida.orm import DataFactory
      Parameters = DataFactory('gudhi.rdm')
      parameters = Parameters(dict={'max-edge-length': 4.2})
      calc.use_parameters(parameters)
  
      SinglefileData = DataFactory('singlefile')
      distance_matrix = SinglefileData(
          file=os.path.join(gt.TEST_DIR, 'sample_distance.matrix'))
      calc.use_distance_matrix(distance_matrix)
  
      if submit:
          calc.store_all()
          calc.submit()
          print("submitted calculation; calc=Calculation(uuid='{}') # ID={}"\
                  .format(calc.uuid,calc.dbnode.pk))
      else:
          subfolder, script_filename = calc.submit_test()
          path = os.path.relpath(subfolder.abspath)
          print("submission test successful")
          print("Find remote folder in {}".format(path))
          print("In order to actually submit, add '--submit'")