set-required.d.ts

/**
 * Full credits to sindresorhus/type-fest
 * 
 * https://github.com/sindresorhus/type-fest/blob/v0.8.1/source/set-required.d.ts
 * 
 * Thank you!
 */
export type SetRequired<BaseType, Keys extends keyof BaseType = keyof BaseType> =
	// Pick just the keys that are not required from the base type.
	Pick<BaseType, Exclude<keyof BaseType, Keys>> &
	// Pick the keys that should be required from the base type and make them required.
	Required<Pick<BaseType, Keys>> extends
	// If `InferredType` extends the previous, then for each key, use the inferred type key.
	infer InferredType
		? {[KeyType in keyof InferredType]: InferredType[KeyType]}
		: never;