| 1 | /**
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| 2 | * The Firebase Performance Monitoring Web SDK.
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| 3 | * This SDK does not work in a Node.js environment.
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| 4 | *
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| 5 | * @packageDocumentation
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| 6 | */
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| 7 | /**
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| 8 | * @license
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| 9 | * Copyright 2020 Google LLC
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| 10 | *
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| 11 | * Licensed under the Apache License, Version 2.0 (the "License");
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| 12 | * you may not use this file except in compliance with the License.
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| 13 | * You may obtain a copy of the License at
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| 14 | *
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| 15 | * http://www.apache.org/licenses/LICENSE-2.0
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| 16 | *
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| 17 | * Unless required by applicable law or agreed to in writing, software
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| 18 | * distributed under the License is distributed on an "AS IS" BASIS,
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| 19 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 20 | * See the License for the specific language governing permissions and
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| 21 | * limitations under the License.
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| 22 | */
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| 23 | import { FirebasePerformance, PerformanceSettings, PerformanceTrace } from './public_types';
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| 24 | import { FirebaseApp } from '@firebase/app';
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| 25 | import '@firebase/installations';
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| 26 | /**
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| 27 | * Returns a {@link FirebasePerformance} instance for the given app.
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| 28 | * @param app - The {@link @firebase/app#FirebaseApp} to use.
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| 29 | * @public
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| 30 | */
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| 31 | export declare function getPerformance(app?: FirebaseApp): FirebasePerformance;
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| 32 | /**
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| 33 | * Returns a {@link FirebasePerformance} instance for the given app. Can only be called once.
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| 34 | * @param app - The {@link @firebase/app#FirebaseApp} to use.
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| 35 | * @param settings - Optional settings for the {@link FirebasePerformance} instance.
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| 36 | * @public
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| 37 | */
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| 38 | export declare function initializePerformance(app: FirebaseApp, settings?: PerformanceSettings): FirebasePerformance;
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| 39 | /**
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| 40 | * Returns a new `PerformanceTrace` instance.
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| 41 | * @param performance - The {@link FirebasePerformance} instance to use.
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| 42 | * @param name - The name of the trace.
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| 43 | * @public
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| 44 | */
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| 45 | export declare function trace(performance: FirebasePerformance, name: string): PerformanceTrace;
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| 46 | export { FirebasePerformance, PerformanceSettings, PerformanceTrace };
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