Flutter/Dart Freezed Snippets

dart.json

{
	"Freezed Class": {
		"prefix": "frz",
		"body": [
			"import 'package:freezed_annotation/freezed_annotation.dart';",
			"",
			"part '${1/(.*)/${1:/downcase}/}.freezed.dart';",
			"part '${1/(.*)/${1:/downcase}/}.g.dart'",
			"",
			"@freezed",
			"abstract class ${1:Classname} with _$${1:Classname} {",
			"\tfactory ${1:Classname}(classProperties) = _${1:Classname};",
			"}"
		],
		"description": "Create new immutable data type"
	},

	"Freezed Serializable Class": {
		"prefix": "frzs",
		"body": [
			"import 'package:freezed_annotation/freezed_annotation.dart';",
			"",
			"part '${1/(.*)/${1:/downcase}/}.freezed.dart';",
			"part '${1/(.*)/${1:/downcase}/}.g.dart';",
			"",
			"@freezed",
			"abstract class ${1:Classname} implements _$${1:Classname} {",
			"\tfactory ${1:Classname}(${2:properties}) = _${1:Classname};",
			"\tfactory ${1:Classname}.fromJson(Map<String, dynamic> json) => _$${1:Classname}FromJson(json);",
			"}"
		],
		"description": "Create new immutable JSON serilizable data type"
	}
}

Make sure to hit Tab after writing classname for classname to filename snippet converter to work correctly