/**
 * `omp zsh|bash|sh [args...]`: the pi-shell engine as a process shell, run
 * in this process through the native `runShellMain`.
 *
 * The argv after `omp` reaches the shell untouched (`omp zsh --help`, `-c`,
 * `-i`, `-l`, `--emulate`, scripts), its first word becoming the shell's
 * `argv[0]` (which picks the dialect). `cli.ts` dispatches here before the
 * command framework loads; the registered `zsh`/`bash`/`sh` commands exist
 * for `omp --help` and the generated completions.
 */
/** The shells `omp` runs natively, by command word. */
export declare const NATIVE_SHELLS: Readonly<Record<string, true>>;
/** Whether `word` (the first argv word) names a native shell. */
export declare function isNativeShell(word: string | undefined): word is string;
/**
 * Run the shell `argv[0]` names with the rest of `argv` as its command line,
 * then exit the process with its status.
 */
export declare function runNativeShell(argv: string[]): Promise<never>;