/**
 * @license
 * Copyright 2019 Google LLC
 * SPDX-License-Identifier: BSD-3-Clause
 */
import { ResultStatsWithDifferences } from './stats.js';
/**
 * Format statistical results as a CSV file string.
 */
export declare function formatCsvStats(results: ResultStatsWithDifferences[]): string;
/**
 * Format raw sample results as a CSV file string.
 *
 * Columns correspond to benchmarks. Rows correspond to sample iterations. The
 * first row is headers containing the benchmark names.
 *
 * For example:
 *
 * foo, bar, baz
 * 1.2, 5.5, 9.4
 * 1.8, 5.6, 9.1
 * 1.3, 5.2, 9.8
 */
export declare function formatCsvRaw(results: ResultStatsWithDifferences[]): string;