/** Type-only helper for assertions in tests. */
export declare const expectType: <T>(value: T) => T;
/** Assert deep equality with aligned generic types. */
export declare const equal: <T>(actual: T, expected: T, message?: string | Error) => void;
export declare const notEqual: <T>(actual: T, expected: T, message?: string | Error) => void;
export { ok as assert, throws } from 'assert';
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