/**
 * The `Merge` and `TupleToUnion` types (and their dependant types) from the `type-fest` package.
 * https://github.com/sindresorhus/type-fest
 */
export type TupleToUnion<ArrayType> = ArrayType extends readonly unknown[] ? ArrayType[number] : never;
type PickIndexSignature<ObjectType> = {
    [KeyType in keyof ObjectType as object extends Record<KeyType, unknown> ? KeyType : never]: ObjectType[KeyType];
};
type OmitIndexSignature<ObjectType> = {
    [KeyType in keyof ObjectType as object extends Record<KeyType, unknown> ? never : KeyType]: ObjectType[KeyType];
};
type Simplify<T> = {
    [KeyType in keyof T]: T[KeyType];
};
type RequiredFilter<Type, Key extends keyof Type> = undefined extends Type[Key] ? Type[Key] extends undefined ? Key : never : Key;
type OptionalFilter<Type, Key extends keyof Type> = undefined extends Type[Key] ? Type[Key] extends undefined ? never : Key : never;
type EnforceOptional<ObjectType> = Simplify<{
    [Key in keyof ObjectType as RequiredFilter<ObjectType, Key>]: ObjectType[Key];
} & {
    [Key in keyof ObjectType as OptionalFilter<ObjectType, Key>]?: Exclude<ObjectType[Key], undefined>;
}>;
type SimpleMerge<Destination, Source> = {
    [Key in keyof Destination | keyof Source]: Key extends keyof Source ? Source[Key] : Key extends keyof Destination ? Destination[Key] : never;
};
export type Merge<Destination, Source> = EnforceOptional<SimpleMerge<PickIndexSignature<Destination>, PickIndexSignature<Source>> & SimpleMerge<OmitIndexSignature<Destination>, OmitIndexSignature<Source>>>;
export {};