/**
 * Copyright 2017 Google Inc. All Rights Reserved.
 *
 * 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.
 */
import { perftools } from '../../proto/profile';
import { SourceMapper } from './sourcemapper/sourcemapper';
import { AllocationProfileNode } from './v8-types';
export declare function v8Profile(): AllocationProfileNode;
/**
 * Collects a profile and returns it serialized in pprof format.
 * Throws if heap profiler is not enabled.
 *
 * @param ignoreSamplePath
 * @param sourceMapper
 */
export declare function profile(ignoreSamplePath?: string, sourceMapper?: SourceMapper): perftools.profiles.IProfile;
/**
 * Starts heap profiling. If heap profiling has already been started with
 * the same parameters, this is a noop. If heap profiler has already been
 * started with different parameters, this throws an error.
 *
 * @param intervalBytes - average number of bytes between samples.
 * @param stackDepth - maximum stack depth for samples collected.
 */
export declare function start(intervalBytes: number, stackDepth: number): void;
export declare function stop(): void;