initWithFormat_locale_ method
Implementation
@override
NSMutableString initWithFormat_locale_(NSString format, NSObject? locale) {
final _ret = _lib._objc_msgSend_373(_id, _lib._sel_initWithFormat_locale_1,
format._id, locale?._id ?? ffi.nullptr);
return NSMutableString._(_ret, _lib, retain: true, release: true);
}