Please help me to solve the problem of null why I can't fetch data of preparationstep from https://rapidapi.com/apidojo/api/yummly2 it shows null in flutter help me please
# **code**
# ```
# recipe.dart
#
`# import 'dart:html';
#
# class Recipe {
# final String name;
# final String images;
# final double rating;
# final String totalTime;
# final String preparationSteps;
#
# Recipe({
# required this.name,
# required this.images,
# required this.rating,
# required this.totalTime,
# required this.preparationSteps,
# });
#
# factory Recipe.fromJson(dynamic json) {
# return Recipe(
# name: json['name'] as String,
# images: json['images'][0]['hostedLargeUrl'] as String,
# rating: json['rating'] as double,
# totalTime: json['totalTime'] as String,
# preparationSteps: json['preparationSteps'] as String,
# );
# }
#
# static List<Recipe> recipesFromSnapshot(List snapshot) {
# return snapshot.map((data) {
# return Recipe.fromJson(data);
# }).toList();
# }
#
# @override
# String toString() {
# return 'Recipe {name: $name, image: $images, rating: $rating, totalTime: $totalTime, preparationSteps: $preparationSteps}';
# }
# }
# ```
#