/**
 * Core setter implementation for document modification
 */
import type { SetOptions, ModificationResult } from './types.js';
/**
 * Set a value at a specific path in a document
 *
 * @param document - The document to modify (will be mutated)
 * @param pathExpression - Path expression
 * @param value - Value to set
 * @param options - Set options
 * @returns Modification result
 */
export declare function set(document: any, pathExpression: string, value: any, options?: SetOptions): ModificationResult;
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