it('correctly decodes an Address20', (): void => {
    const a = registry.createType('MultiAddress', '0x67f89207abe6e1b093befd84a48f033137659292');

    expect(a.index).toEqual(4);
    expect(a.toString()).toEqual('0x67f89207abe6e1b093befd84a48f033137659292');