/********************************************************************************
 * Copyright (c) 2026 CrossBreeze, EclipseSource and others.
 *
 * This program and the accompanying materials are made available under the
 * terms of the MIT License which is available in the project root.
 *
 * SPDX-License-Identifier: MIT
 ********************************************************************************/
import type { BrowserRuntimeReport } from '@hydranium/protocol';
/**
 * Capture the renderer runtime as a single-point {@link BrowserRuntimeReport}
 * (`after`-only — the live gauge read). Prefers the standardized
 * `performance.measureUserAgentSpecificMemory()` (precise, by type + container, but
 * requires cross-origin isolation and is rate-limited), falling back to Chrome's
 * coarse `performance.memory` (JS-heap gauge), then to `unavailable`. The two-point
 * CDP source (`nodes`/`jsEventListeners`/… + delta) is the e2e bridge's job.
 */
export declare function captureBrowserRuntime(): Promise<BrowserRuntimeReport>;
/** Render a {@link BrowserRuntimeReport} as a one-line summary for a channel / toast. */
export declare function formatBrowserRuntime(report: BrowserRuntimeReport): string;
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