text: import click
  from gaussianutility.utils import freeze_low
  
  @click.command(name = 'freezeLow',
                 context_settings = {'help_option_names': ['-h', '--help'],
                                     'show_default': True})
  @click.argument('file_name', type=str) # it must include a file format
  
  def main(file_name):
      """Freeze Carterian coordinates of atoms in the low ONIOM layer.    
      Currently, ".com" and ".gjf" formats are supported.
      """
      freeze_low(file_name)
      
  