Schema.enumeration constructor
      const
      Schema.enumeration({ 
    
    
- String? title,
- String? description,
- String? example,
- @JsonKey.new(name: 'default') String? defaultValue,
- bool? nullable,
- @JsonKey.new(includeToJson: false, includeFromJson: false) String? unknownValue,
- @JsonKey.new(name: 'enum') List<String> ? values,
- @JsonKey.new(name: '\$ref') @_SchemaRefConverter.new() String? ref,
Implementation
const factory Schema.enumeration({
  String? title,
  String? description,
  String? example,
  @JsonKey(name: 'default') String? defaultValue,
  bool? nullable,
  @JsonKey(includeToJson: false, includeFromJson: false) String? unknownValue,
  @JsonKey(name: 'enum') List<String>? values,
  @JsonKey(name: '\$ref') @_SchemaRefConverter() String? ref,
}) = SchemaEnum;