/**
 * Core Validation Utilities
 *
 * Basic validation functions for common data types including IDs, strings, and arrays.
 * These validators form the foundation for more specific validation logic.
 */
import { WordPressId } from "../../types/enhanced.js";
/**
 * Validates and sanitizes numeric IDs with comprehensive edge case handling
 * Returns branded WordPress ID type for enhanced type safety
 */
export declare function validateId(id: unknown, fieldName?: string): WordPressId;
/**
 * Validates string length within bounds
 */
export declare function validateString(value: unknown, fieldName: string, minLength?: number, maxLength?: number): string;
/**
 * Validates arrays with size constraints and type safety
 */
export declare function validateArray<T>(value: unknown, fieldName: string, minItems?: number, maxItems?: number): T[];
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