import type { UnknownRecord } from '../interface';
import type { SourceCodeInfo } from '../tokenizer/token';
export declare function asNonUndefined<T>(value: T | undefined, sourceCodeInfo?: SourceCodeInfo): T;
export declare function assertNonUndefined<T>(value: T | undefined, sourceCodeInfo?: SourceCodeInfo): asserts value is T;
/**
 * Returns true if `value` is a plain JS record (not a Dvala PersistentVector,
 * PersistentMap, RegExp, or other special object). Used for internal frame
 * data, not for Dvala value checks (use `isObj` for Dvala objects).
 */
export declare function isUnknownRecord(value: unknown): value is Record<string, unknown>;
export declare function assertUnknownRecord(value: unknown, sourceCodeInfo?: SourceCodeInfo): asserts value is UnknownRecord;
export declare function asUnknownRecord(value: unknown, sourceCodeInfo?: SourceCodeInfo): UnknownRecord;