batchLeave method
      
Future<GoogleProtobufEmpty> 
batchLeave(
    
- GoogleFirebaseAppdistroV1BatchLeaveGroupRequest request,
- String group, {
- String? $fields,
Batch removed members from a group.
The testers will lose access to all releases that the groups have access to.
request - The metadata request object.
Request parameters:
group - Required. The name of the group resource from which testers are
removed. Format: projects/{project_number}/groups/{group_alias}
Value must have pattern ^projects/\[^/\]+/groups/\[^/\]+$.
$fields - Selector specifying which fields to include in a partial
response.
Completes with a GoogleProtobufEmpty.
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<GoogleProtobufEmpty> batchLeave(
  GoogleFirebaseAppdistroV1BatchLeaveGroupRequest request,
  core.String group, {
  core.String? $fields,
}) async {
  final body_ = convert.json.encode(request);
  final queryParams_ = <core.String, core.List<core.String>>{
    if ($fields != null) 'fields': [$fields],
  };
  final url_ = 'v1/' + core.Uri.encodeFull('$group') + ':batchLeave';
  final response_ = await _requester.request(
    url_,
    'POST',
    body: body_,
    queryParams: queryParams_,
  );
  return GoogleProtobufEmpty.fromJson(
    response_ as core.Map<core.String, core.dynamic>,
  );
}