/**
 * Low-level adb invocation helpers.
 *
 * All public surfaces here go through execFile / execFileSync — never `/bin/sh -c`.
 * Shell metacharacters in `args` are passed as literal argv slots, not parsed by
 * the host shell. This structurally prevents host-side OS Command Injection
 * (CWE-78) — see issue #40.
 */
/** Default timeout for text adb commands (`shell ...`, `devices`, etc.). */
export declare const EXEC_TIMEOUT_MS = 15000;
/** Extended timeout for raw byte adb commands (screenshots, file pulls). */
export declare const EXEC_RAW_TIMEOUT_MS = 30000;
/** Build the `-s <id>` argv slice for an optional device override. */
export declare function deviceArgs(deviceId: string | undefined): string[];
/** Synchronous text invocation: returns trimmed stdout. */
export declare function execAdb(args: string[], deviceId: string | undefined): string;
/** Synchronous raw-bytes invocation (e.g. PNG screenshot). */
export declare function execAdbRaw(args: string[], deviceId: string | undefined): Buffer;
/** Asynchronous text invocation. */
export declare function execAdbAsync(args: string[], deviceId: string | undefined): Promise<string>;
/** Asynchronous raw-bytes invocation. */
export declare function execAdbRawAsync(args: string[], deviceId: string | undefined): Promise<Buffer>;
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