call abstract method

$R call({
  1. FlutterSdkRelease? beta,
  2. FlutterSdkRelease? dev,
  3. FlutterSdkRelease? stable,
})

Implementation

$R call(
    {FlutterSdkRelease? beta,
    FlutterSdkRelease? dev,
    FlutterSdkRelease? stable});