import type { JsonSchemaObject } from './schema-core.js';
/**
 * Clone a JSON-compatible value when the caller has provided one.
 *
 * @template T JSON-compatible value type.
 * @param value Optional value to clone with the shared JSON clone helper.
 * @returns A cloned value, or undefined when the input is undefined.
 */
export declare function cloneJsonValueIfDefined<T>(value: T | undefined): T | undefined;
/**
 * Check whether a candidate is a non-null JSON Schema object.
 *
 * @param value Candidate value to narrow.
 * @returns True when the value is an object and not an array.
 */
export declare function isJsonSchemaObject(value: unknown): value is JsonSchemaObject;
/**
 * Narrow a `typia.llm` artifact field before applying JSON Schema mutations.
 *
 * @param value Candidate schema value emitted by `typia.llm`.
 * @param context Human-readable artifact path for diagnostics.
 * @returns The value narrowed to the shared JSON Schema object shape.
 */
export declare function assertJsonSchemaObject(value: unknown, context: string): JsonSchemaObject;