/**
 * Helper type to ensure that an array of keys matches an interface.
 *
 * For example:
 *
 * ```ts
 * interface Foo {
 *   arg1: string;
 *   arg2: string;
 * }
 *
 * const FOO_KEYS = ["arg1", "arg2"] as const;
 * type _ = Expect<KeysMatch<Foo, typeof FOO_KEYS>>;
 * ```
 */
export type KeysMatch<T, Keys extends readonly PropertyKey[]> = [
    keyof T
] extends [Keys[number]] ? [Keys[number]] extends [keyof T] ? true : {
    error: "Extra keys not in interface";
    extra: Exclude<Keys[number], keyof T>;
} : {
    error: "Missing keys from interface";
    missing: Exclude<keyof T, Keys[number]>;
};
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