The Record<Keys, Type> utility type constructs an object whose properties are Keys and the property values are Type.

Example usage⌗ 

interface User {
    id: number,
    name: string,
    age: number,
}

type UserId = 1 | 2 | 3;

const userData: Record<UserId, User> = {
    1: {1, "Steven Seagall", 40},
    2: {2, "Tony Stark", 60},
    3: {3, "Jason Bourne", 35},
}

console.log(userData.1);
// {1, "Steven Seagall", 40}

This simple example demonstrates a simple usage of the Record type. However, you can use this type to create even more complicated key value pairs.