export const v4 = () => '00000000-0000-0000-0000-000000000000';
export const v1 = () => '00000000-0000-0000-0000-000000000000';
export const v3 = () => '00000000-0000-0000-0000-000000000000';
export const v5 = () => '00000000-0000-0000-0000-000000000000';