export interface TerminalState {
    readonly stdinIsTTY: boolean;
    readonly stdoutIsTTY: boolean;
}
/** Mirrors `resolveAppMode`: rpc, json and print modes, including print selected by piped input or output. */
export declare function isHeadlessInvocation(args: readonly string[], terminal: TerminalState): boolean;
/**
 * Heap flags a headless run on Node should be relaunched with, or none. Interactive sessions size their engine
 * child instead, and a process that was already relaunched or started with an explicit heap size keeps its own.
 */
export declare function headlessHeapRelaunchArgs(args: readonly string[]): string[];
/** Runs this CLI again with the heap flags, passing through stdio, termination signals and the exit status. */
export declare function relaunchWithHeap(heapArgs: readonly string[], args: readonly string[]): void;
//# sourceMappingURL=heap-relaunch.d.ts.map