/**
 * Copyright 2017 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * Check to make sure the appropriate number of arguments are provided for a public function.
 * Throws an error if it fails.
 *
 * @param {!string} fnName The function name
 * @param {!number} minCount The minimum number of arguments to allow for the function call
 * @param {!number} maxCount The maximum number of argument to allow for the function call
 * @param {!number} argCount The actual number of arguments provided.
 */
export declare const validateArgCount: (fnName: any, minCount: any, maxCount: any, argCount: any) => void;
/**
 * Generates a string to prefix an error message about failed argument validation
 *
 * @param {!string} fnName The function name
 * @param {!number} argumentNumber The index of the argument
 * @param {boolean} optional Whether or not the argument is optional
 * @return {!string} The prefix to add to the error thrown for validation.
 */
export declare function errorPrefix(fnName: any, argumentNumber: any, optional: any): string;
/**
 * @param {!string} fnName
 * @param {!number} argumentNumber
 * @param {!string} namespace
 * @param {boolean} optional
 */
export declare function validateNamespace(fnName: any, argumentNumber: any, namespace: any, optional: any): void;
export declare function validateCallback(fnName: any, argumentNumber: any, callback: any, optional: any): void;
export declare function validateContextObject(fnName: any, argumentNumber: any, context: any, optional: any): void;