const 
const obj: {
    boo: number;
    bar: () => number;
    baz: string;
}obj = {
  boo: numberboo: 1,
  bar: () => numberbar: () => 2,
  baz: stringbaz: 'string'
}
const obj: {
    boo: number;
    bar: () => number;
    baz: string;
}obj.b
bar
baz
booboo: numberoo