/**
 * Copyright (c) ACT, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */
/**
 * Helper which validates against the options interface without changing the actual value type.
 */
export declare const typeOk: <T>() => <V extends T>(val: V) => V;
/**
 * Helper which accesses an object's keys in a type safe way instead of returning a string[]
 */
export declare const typedKeys: <T extends object>(value: T) => (keyof T)[];
export declare const notImplemented: () => never;
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