Rocket.Chat.ReactNative/app/lib/constants/mediaAutoDownload.ts

export type MediaDownloadOption = 'never' | 'wifi_mobile_data' | 'wifi';

export const IMAGES_PREFERENCE_DOWNLOAD = 'imagesPreferenceDownload';
export const VIDEO_PREFERENCE_DOWNLOAD = 'videoPreferenceDownload';
export const AUDIO_PREFERENCE_DOWNLOAD = 'audioPreferenceDownload';