//write typings for code mentioned below

type Sex = 'Male' | 'Female';
type People = {[key: number]: {name: string, sex: Sex}};

let people: People = {
    0: {
        name: 'John',
        sex: 'Male'
    },
    1: {
        name: 'Dory',
        sex: 'Female'
    },
    2: {
        name: 'Mark',
        sex: 'Male'
    }
};

//that should be ok
people = {
    3: {
        name: 'George',
        sex: 'Male'
    },
    4: {
        name: 'Ron',
        sex: 'Male'
    }
};

//that should still give an error
people = {
    5: {
        name: 'Tory',
        sex: 'Male'
    }
};