code: def main(args=None):
      
      parser = argparse.ArgumentParser(
          description='Extracts metadata from a Fuel-converted HDF5 file.')
      parser.add_argument("filename", help="HDF5 file to analyze")
      args = parser.parse_args()
  
      with h5py.File(args.filename, 'r') as h5file:
          interface_version = h5file.attrs.get('h5py_interface_version', 'N/A')
          fuel_convert_version = h5file.attrs.get('fuel_convert_version', 'N/A')
          fuel_convert_command = h5file.attrs.get('fuel_convert_command', 'N/A')
  
      message_prefix = message_prefix_template.format(
          os.path.basename(args.filename))
      message_body = message_body_template.format(
          fuel_convert_command, interface_version, fuel_convert_version)
      message = ''.join(['\n', message_prefix, '\n', '=' * len(message_prefix),
                         message_body])
      print(message)
docs: Entry point for `fuel-info` script.
  
      This function can also be imported and used from Python.
  
      Parameters
      ----------
      args : iterable, optional (default: None)
          A list of arguments that will be passed to Fuel's information
          utility. If this argument is not specified, `sys.argv[1:]` will
          be used.