dispatch method

Implementation

String dispatch(method) {
  return switch (method) {
    'Ignored' => 'transform_clean_delete_ignored',
    'Variable' => 'transform_clean_delete_selected',
    'Vars with Missing' => 'transform_clean_delete_vars_missing',
    'Obs with Missing' => 'transform_clean_delete_obs_missing',
    _ => '',
  };
}