Expression.fromJson constructor 
    
      
      Expression.fromJson(
 - Map<String, dynamic> json
) 
    
    
  Implementation
  factory Expression.fromJson(Map<String, dynamic> json) {
  return Expression(
    and: (json['And'] as List?)
        ?.whereNotNull()
        .map((e) => Expression.fromJson(e as Map<String, dynamic>))
        .toList(),
    costCategories: json['CostCategories'] != null
        ? CostCategoryValues.fromJson(
            json['CostCategories'] as Map<String, dynamic>)
        : null,
    dimensions: json['Dimensions'] != null
        ? DimensionValues.fromJson(json['Dimensions'] as Map<String, dynamic>)
        : null,
    not: json['Not'] != null
        ? Expression.fromJson(json['Not'] as Map<String, dynamic>)
        : null,
    or: (json['Or'] as List?)
        ?.whereNotNull()
        .map((e) => Expression.fromJson(e as Map<String, dynamic>))
        .toList(),
    tags: json['Tags'] != null
        ? TagValues.fromJson(json['Tags'] as Map<String, dynamic>)
        : null,
  );
}