class DialogRequest { DialogRequest( { required this.title, required this.description, required this.buttonTitle, this.cancelTitle, this.requestPrice, this.requestCount }); final String title; final String description; final String buttonTitle; final String? cancelTitle; final String? requestPrice; final String? requestCount; } class DialogResponse { DialogResponse({ required this.confirmed, this.responsePrice, this.responseCount, }); final String? responsePrice; final String? responseCount; final bool confirmed; }