import type Ajv from 'ajv';
import type { Options } from 'ajv';
import type { JSONSchema, JSONSchemaDefinitions, Validator } from '../../types';
import { ValidationSeverity } from '../../types.js';
export interface AjvValidatorOptions {
    /**
     * The JSON schema to validate (required).
     */
    schema: JSONSchema;
    /**
     * An object containing JSON Schema definitions which can be referenced using $ref.
     */
    schemaDefinitions?: JSONSchemaDefinitions;
    /**
     * Optional extra options for Ajv.
     */
    ajvOptions?: Options;
    /**
     * An optional callback function allowing to apply additional configuration on the provided Ajv instance, or return
     * your own Ajv instance and ignore the provided one.
     */
    onCreateAjv?: (ajv: Ajv) => Ajv | void;
    /**
     * The severity of the validation error.
     *
     * @default ValidationSeverity.warning
     */
    errorSeverity?: ValidationSeverity;
}
/**
 * Create a JSON Schema validator powered by Ajv.
 */
export declare function createAjvValidator(options: AjvValidatorOptions): Validator;
/**
 * Create a JSON Schema validator powered by Ajv.
 *
 * Same as `createAjvValidator`, but allows for remote schema resolution through `ajvOptions`'s `loadSchema(uri)`
 * function.
 *
 * Note that `ajvOptions.loadSchema` *must* be set, or Ajv throws an error on initialization!
 *
 * ### Example
 *
 *     const validate = await createAjvValidatorAsync({
 *       schema: {
 *         $ref: '/schema.json'
 *       },
 *       ajvOptions: {
 *         loadSchema(uri) {
 *           return fetch(uri).then((res) => res.json())
 *         }
 *       }
 *     })
 */
export declare function createAjvValidatorAsync(options: AjvValidatorOptions): Promise<Validator>;