/**
 * CLI entry point for `ttsx`. Type-checks the owning project via tsgo, emits
 * JavaScript to a PID-isolated temp directory, rewrites ESM specifiers when
 * needed, and executes the compiled entry with the current Node.js runtime.
 *
 * @param argv - Command-line arguments (defaults to `process.argv.slice(2)`).
 * @returns The child-process exit code, or `2` on a ttsx-level error.
 */
export declare function runTtsx(argv?: readonly string[]): number;