pkg/analyzer_cli/test/data/flutter_analysis_options/somepkgs/flutter/lib/material.dart

import 'package:meta/meta.dart';

class FloatingActionButton {
  /// The widget below this widget in the tree.
  final Object child;

  /// Creates a floating action button.
  ///
  /// Most commonly used in the [Scaffold.floatingActionButton] field.
  const FloatingActionButton({
    @required this.child,
  });
}