/**
 * A unique in-sandbox path for one invocation's stdin bytes: unique
 * per invocation so concurrent lines on the same runtime never
 * overwrite each other's payload.
 */
export declare function stdinPath(): string;
/**
 * The line rewritten to read its stdin from an uploaded file: runs
 * the line in a subshell with stdin redirected from the path, removes
 * the file afterward, and preserves the line's exit code. This is the
 * only byte-exact stdin with a real EOF that Daytona and e2b allow:
 * their exec APIs take no stdin stream, e2b's sendStdin cannot signal
 * EOF, and a PTY merges streams and mangles bytes.
 *
 * Known limitations, all inherent to the file transport:
 * - stdin is fully buffered and uploaded before the line starts;
 *   nothing is streamed, so no interactive stdin.
 * - the bytes briefly touch the sandbox's /tmp, readable by other
 *   processes in the sandbox and left behind if the exec dies before
 *   the `rm` runs (a later line's unique path is never affected).
 * - each stdin line costs two extra provider API calls (mkdir +
 *   upload).
 * - the sandbox must have a POSIX sh (subshell, `$?`, `rm`).
 * If a provider ever adds real exec stdin, drop this for that
 * provider (docker already streams via `docker exec -i`).
 */
export declare function stdinRedirect(line: string, path: string): string;
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