/**
 * An error that occurs when a task violates a logical condition that is assumed to be true at all times.
 */
export declare class InvariantError extends Error {
    name: "InvariantError";
}
/**
 * Asserts that the given condition is truthy
 *
 * @param condition - Either truthy or falsy value
 * @param message - An error message
 */
export declare function invariant(condition: unknown, message: string): asserts condition;