export declare const MyWithUpdateState: import("element-vir").DeclarativeElementDefinition<"my-with-update-state", {}, {
    username: string;
    /**
     * Use "as" to create state properties that can be types other than the initial value's
     * type. This is particularly useful when, as below, the initial value is undefined.
     */
    email: string | undefined;
}, {}, "my-with-update-state-", "my-with-update-state-", readonly [], readonly []>;