import type { JsonValue } from './types.js';
export declare class IJsonValidationError extends TypeError {
    constructor(message: string);
}
/** Validate the in-memory new-write input before RFC 8785 processing.
 *  No coercion is performed. In particular, undefined is not converted to null
 *  and Date is not converted to a string. */
export declare function assertIJson(value: unknown, path?: string, ancestors?: WeakSet<object>): asserts value is JsonValue;
export declare function strictJCS(value: unknown): string;
/** Parse bounded raw JSON without losing duplicate object names.
 *  Duplicate comparison is performed after JSON string decoding, so aliases
 *  such as "a" and "\u0061" are the same member name and are rejected. */
export declare function parseStrictIJson(raw: string, maxUtf8Bytes?: number, maxDepth?: number): JsonValue;
export declare function assertExactKeys(value: Record<string, unknown>, allowed: readonly string[], required: readonly string[], name: string): void;
//# sourceMappingURL=jcs.d.ts.map