let stateObject = SW.getNewStateObject();

        SW.DataTypes.add("UserId", {
            structure: /[0-9]|[a-z]|[A-Z]/g,
            onValidate: (incomingValue) => {
                console.log(incomingValue);
                return true;
            },
            minLength: 1,
            required: true,
            nullable: false,
            defaultValue: null
        });

        //Standard contract
        stateObject.defineContract("ItemsContract", {
            id: SW.DataTypes.use("UserId"),
            name: SW.DataTypes.use("String", {
                defaultValue: null
            }),
            age: SW.DataTypes.use("Number"),
            email: SW.DataTypes.use("String"),
            password: SW.DataTypes.use("String", {
                hidden: true
            })
        });

        let contractItem = stateObject.createFromContract("ItemsContract", {
            id: String.prototype.toUniqueId(16),
            name: "Liviu"
        });

        console.log(contractItem); //{id: "tqYQWvW24P5NtJum", name: "Liviu", age: null, email: null, password: null}