import type { TtscSingleFileEmitOptions } from "../../structures/internal/TtscSingleFileEmitOptions";
/**
 * Emit one source file by building its project into a temporary directory.
 *
 * The full project is compiled with `forceListEmittedFiles` so that the emitted
 * file list is available for `resolveEmittedJavaScript`. The temp directory is
 * always cleaned up in the `finally` block, even on error.
 *
 * @returns The transformed JavaScript source text.
 * @throws When the build exits non-zero or no output is produced for the file.
 */
export declare function runSingleFileEmit(options: TtscSingleFileEmitOptions): string;