import { DateTime } from 'luxon';
import type { NodeType, SchemaRef, ParsedRule, NodeSubType, ErrorReporterConstructorContract } from '../types.js';
import { Request } from '@adonisjs/core/http';
/**
 * Ensure value is not `undefined`
 */
export declare function existsStrict(value: any): boolean;
/**
 * Ensure that value exists. Empty string, null and undefined
 * fails the exists check.
 */
export declare function exists(value: any): boolean;
/**
 * Ensure value is a valid Object. Returns false for `Array` and `null`
 */
export declare function isObject(value: any): boolean;
/**
 * Enforces the value to be an array
 */
export declare function enforceArray(value: unknown, message?: string): asserts value is any[];
/**
 * Enforces the value to be an instance of luxon DateTime object
 */
export declare function enforceDateTime(value: any, message?: string): asserts value is DateTime;
/**
 * Returns a boolean telling value is a schema ref
 */
export declare function isRef(value: any): value is SchemaRef<unknown>;
/**
 * Returns the field value for a given pointer. If pointer starts
 * with `/`, then it will be searched from the root of the
 * object, otherwise it's searched from the nearest tip
 */
export declare function getFieldValue(field: string, root: any, tip: any): any;
/**
 * Resolves the field name in relation to the other field. If field name
 * starts with `/` it is returned as it is by removing `/`. Otherwise
 * the other field pointer is used to make the absolute name
 */
export declare function resolveAbsoluteName(field: string, otherField: string): string;
/**
 * Validates to ensure that arguments passed to validations compile method
 * is an array
 */
export declare function ensureValidArgs(ruleName: string, args: any): asserts args is any[];
/**
 * Wraps the custom compile function to DRY the repetitive code inside every
 * validation rule.
 *
 * - It ensures that options received by the compile methods is a valid array.
 * - Validates for the restricted subtypes (if defined)
 * - Prepares a default set of parsedRules properties.
 * - Invokes the callback (if defined).
 */
export declare function wrapCompile<T extends any, SubType extends NodeSubType = NodeSubType>(name: string, restrictForTypes?: SubType[], customCallback?: (options: any[], type: NodeType, subtype: SubType, rulesTree: any) => Partial<ParsedRule<T>>): (type: NodeType, subtype: SubType, options: T, rulesTree: any) => ParsedRule<T>;
/**
 * Returns the error reporter for the current HTTP request
 */
export declare function getRequestReporter(request: Request): ErrorReporterConstructorContract;