/**
 * Copyright 2020 Google LLC
 *
 * 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.
 */
/**
 * Returns a new function that delays invocations to the original function
 * within a specified wait period. The last invocation within this time period
 * gets invoked. All earlier invocations are ignore.
 *
 * @param func The function to invoke.
 * @param wait The time in milliseconds to wait for idle invocations.
 */
export declare function debounce<T>(func: (...params: any[]) => T, wait?: number): () => Promise<T>;