type KnownReporter = 'clover' | 'cobertura' | 'codecov' | 'console-details' | 'html' | 'html-spa' | 'json' | 'json-summary' | 'lcov' | 'lcovonly' | 'none' | 'teamcity' | 'text' | 'text-lcov' | 'text-summary' | 'v8';
type Reporter = KnownReporter | (string & NonNullable<unknown>);
type KnownExtension = '.cjs' | '.cts' | '.js' | '.jsx' | '.mjs' | '.mts' | '.ts' | '.tsx';
type Extension = KnownExtension | (string & NonNullable<unknown>);
export type CoverageOptions = {
    /**
     * Path to a JSONC/JSON configuration file.
     *
     * - `string` — load that specific file
     * - `false` — disable config file discovery
     * - `undefined` (default) — auto-discover `.c8rc`, `.c8rc.json`, `.nycrc`, `.nycrc.json`,
     *   or a `c8` key in `package.json`, walking up from `cwd`.
     */
    config?: string | false;
    /**
     * Require the `--coverage` CLI flag to activate coverage collection.
     *
     * When `true`, coverage only runs if `--coverage` is passed to the CLI.
     * When `false`, coverage runs whenever the plugin is active.
     *
     * @default false
     */
    requireFlag?: boolean;
    /** Coverage reporters to use. */
    reporter?: Reporter | Reporter[];
    /** Directory where coverage reports are written. */
    reportsDirectory?: string;
    /**
     * Directory where V8 writes raw coverage JSON files.
     *
     * When provided, the directory is **not** auto-cleaned after report generation.
     */
    tempDirectory?: string;
    /** Glob patterns for source files to include (empty = all). */
    include?: string[];
    /** Glob patterns for source files to exclude. */
    exclude?: string[];
    /** File extensions to consider for coverage. */
    extension?: Extension[];
    /**
     * Include files that were never loaded by any test (reported as 0% coverage).
     *
     * Use `src` to control which directories are scanned.
     */
    all?: boolean;
    /** Directories to scan when `all` is `true`. */
    src?: string[];
    /** Delete previous coverage data before running. */
    clean?: boolean;
    /**
     * Enforce coverage thresholds.
     *
     * - `true` — check using individual `lines`, `branches`, `functions`, and `statements` values.
     * - `number` — set all thresholds to that value (e.g., `100` is equivalent to `--100` in c8 CLI).
     *
     * When a threshold is not met, `process.exitCode` is set to `1`.
     */
    checkCoverage?: boolean | number;
    /** Check thresholds per file instead of globally. */
    perFile?: boolean;
    /** Minimum line coverage percentage. */
    lines?: number;
    /** Minimum branch coverage percentage. */
    branches?: number;
    /** Minimum function coverage percentage. */
    functions?: number;
    /** Minimum statement coverage percentage. */
    statements?: number;
    /** Skip files with 100% coverage in the text report. */
    skipFull?: boolean;
    /** Apply exclude rules after source-map remapping. */
    excludeAfterRemap?: boolean;
    /** Custom watermark thresholds for report coloring. */
    watermarks?: Record<string, [number, number]>;
    /** Use async incremental merge (useful for large test suites). */
    mergeAsync?: boolean;
    /**
     * Enable experimental features.
     *
     * - `'monocart'` — Use monocart-coverage-reports instead of the default
     *   Istanbul pipeline. Requires `monocart-coverage-reports` to be installed
     *   separately.
     */
    experimental?: 'monocart'[];
};
export {};