modifyLabels method
      
Future<ModifyLabelsResponse> 
modifyLabels(
    
- ModifyLabelsRequest request,
- String fileId, {
- String? $fields,
Modifies the set of labels applied to a file.
Returns a list of the labels that were added or modified.
request - The metadata request object.
Request parameters:
fileId - The ID of the file to which the labels belong.
$fields - Selector specifying which fields to include in a partial
response.
Completes with a ModifyLabelsResponse.
Completes with a commons.ApiRequestError if the API endpoint returned an error.
If the used http.Client completes with an error when making a REST call,
this method will complete with the same error.
Implementation
async.Future<ModifyLabelsResponse> modifyLabels(
  ModifyLabelsRequest request,
  core.String fileId, {
  core.String? $fields,
}) async {
  final body_ = convert.json.encode(request);
  final queryParams_ = <core.String, core.List<core.String>>{
    if ($fields != null) 'fields': [$fields],
  };
  final url_ = 'files/' + commons.escapeVariable('$fileId') + '/modifyLabels';
  final response_ = await _requester.request(
    url_,
    'POST',
    body: body_,
    queryParams: queryParams_,
  );
  return ModifyLabelsResponse.fromJson(
      response_ as core.Map<core.String, core.dynamic>);
}