delete method
Deletes the specified version of the Tool.
Request parameters:
name - Required. The name of the tool version to delete. Format:
projects//locations//agents//tools//versions/.
Value must have pattern
^projects/\[^/\]+/locations/\[^/\]+/agents/\[^/\]+/tools/\[^/\]+/versions/\[^/\]+$.
force - Optional. This field has no effect for Tools not being used. For
Tools that are used: * If force is set to false, an error will be
returned with message indicating the referenced resources. * If force is
set to true, Dialogflow will remove the tool, as well as any references to
the tool.
$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> delete(
  core.String name, {
  core.bool? force,
  core.String? $fields,
}) async {
  final queryParams_ = <core.String, core.List<core.String>>{
    if (force != null) 'force': ['${force}'],
    if ($fields != null) 'fields': [$fields],
  };
  final url_ = 'v3/' + core.Uri.encodeFull('$name');
  final response_ = await _requester.request(
    url_,
    'DELETE',
    queryParams: queryParams_,
  );
  return GoogleProtobufEmpty.fromJson(
    response_ as core.Map<core.String, core.dynamic>,
  );
}