/**
 * 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 { SourceMapper } from './sourcemapper/sourcemapper';
type Microseconds = number;
type Milliseconds = number;
export interface TimeProfilerOptions {
    /** time in milliseconds for which to collect profile. */
    durationMillis: Milliseconds;
    /** average time in microseconds between samples */
    intervalMicros?: Microseconds;
    sourceMapper?: SourceMapper;
    name?: string;
    /**
     * This configuration option is experimental.
     * When set to true, functions will be aggregated at the line level, rather
     * than at the function level.
     * This defaults to false.
     */
    lineNumbers?: boolean;
}
export declare function profile(options: TimeProfilerOptions): Promise<import("../../proto/profile").perftools.profiles.IProfile>;
export declare function start(intervalMicros?: Microseconds, name?: string, sourceMapper?: SourceMapper, lineNumbers?: boolean): () => import("../../proto/profile").perftools.profiles.IProfile;
export {};