code: def ext(obj, ext_name, ext_args):
      
      try:
          mod = import_module('lightflow_{}.__main__'.format(ext_name))
          mod.main(ext_args)
      except ImportError as err:
          click.echo(_style(obj['show_color'],
                            'An error occurred when trying to call the extension',
                            fg='red', bold=True))
          click.echo('{}'.format(err))
docs: Run an extension by its name.
  
      \b
      EXT_NAME: The name of the extension.
      EXT_ARGS: Arguments that are passed to the extension.