import'dart:async';import'package:flutter/foundation.dart'showValueGetter;import'package:http/http.dart'ashttp;import'package:http/testing.dart'ashttp;import'../../../packages/flutter/test/services/image_data.dart';// Returns a mock HTTP client that responds with an image to all requests.ValueGetter<http.Client>createMockImageHttpClient=(){returnnewhttp.MockClient((http.BaseRequestrequest){returnnewFuture<http.Response>.value(newhttp.Response.bytes(kTransparentImage,200,request:request));});};