import { Value } from './types';
/**
 * Convert a Value to its JavaScript string representation
 */
export declare function valueToJS(val: Value): string;
/**
 * Evaluate a JavaScript expression string
 * Simple expression evaluator - in production you'd want a proper parser
 */
export declare function evalExpression(expr: string): any;
/**
 * Check if a value is truthy according to RobinPath rules
 */
export declare function isTruthy(val: Value): boolean;
/**
 * Get the type of a value
 */
export declare function getValueType(value: Value): 'string' | 'number' | 'boolean' | 'null' | 'object' | 'array';
/**
 * Attempt to convert a value to a different type
 * @param value The value to convert
 * @param targetType The target type to convert to
 * @returns The converted value, or null if conversion fails
 */
export declare function convertValueType(value: Value, targetType: 'string' | 'number' | 'boolean' | 'null' | 'object' | 'array'): Value | null;