/**
 * @param {string} filePath
 * @returns {Promise<boolean>}
 */
export function isWriteable(filePath: string): Promise<boolean>;
/**
 *
 * @param {import('appium-adb').ADB} adb
 * @param {string} appPath
 * @returns {Promise<void>}
 */
export function signApp(adb: import("appium-adb").ADB, appPath: string): Promise<void>;
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