private MethodInfo GetConfigureMethodInfo() => StartupLoader.FindMethod(this.StartupType, "Configure{0}", this.EnvironmentName, typeof(Task), isRequired: true) !;
private MethodInfo GetConfigureServicesMethodInfo() => StartupLoader.FindMethod(this.StartupType, "Configure{0}Services", this.EnvironmentName, typeof(void), isRequired: true) !;