Type Alias Merge<Left, Right>

Merge: Simplify<Pick<Left, Exclude<keyof Left, keyof Right>> & Right>

Merge two object types; right-hand fields override left-hand ones

type A = { a: number; b: string };
type B = { b: number; c: boolean };
type Merged = Merge<A, B>;
// { a: number; b: number; c: boolean }