rollback method
      
Future<ApiDeployment> 
rollback(
    
- RollbackApiDeploymentRequest request,
 - String name, {
 - String? $fields,
 
Sets the current revision to a specified prior revision.
Note that this creates a new revision with a new revision ID.
request - The metadata request object.
Request parameters:
name - Required. The deployment being rolled back.
Value must have pattern
^projects/\[^/\]+/locations/\[^/\]+/apis/\[^/\]+/deployments/\[^/\]+$.
$fields - Selector specifying which fields to include in a partial
response.
Completes with a ApiDeployment.
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<ApiDeployment> rollback(
  RollbackApiDeploymentRequest request,
  core.String name, {
  core.String? $fields,
}) async {
  final body_ = convert.json.encode(request);
  final queryParams_ = <core.String, core.List<core.String>>{
    if ($fields != null) 'fields': [$fields],
  };
  final url_ = 'v1/' + core.Uri.encodeFull('$name') + ':rollback';
  final response_ = await _requester.request(
    url_,
    'POST',
    body: body_,
    queryParams: queryParams_,
  );
  return ApiDeployment.fromJson(
    response_ as core.Map<core.String, core.dynamic>,
  );
}