For example:

I want to change this

interface typeA {
    name:string;
    children?:typeA[];
}

const a:typeA[] = [
    {
        name: 'b',
        children: [
            {
                name: 'c'
            }
        ]
    },
    {
        name: 'd',
        children: [
            {
                name: 'e',
                children: [
                    {
                        name: 'f'
                    }
                ]
            }
        ]
    }
];

To this

type A = 'b' | 'b.c' | 'd' | 'd.e' | 'd.e.f';

So, I want to convert Array Object to String literal, is it possible to do this?