/* export, on the real core: the file is built by the desktop's own
       writers and handed to Android's create-document sheet. That sheet is
       a system activity the walk cannot tap, so BACK dismisses it — the
       cancel path is what gets walked, and NOTHING is written to this
       phone's storage. The playlist is the "Walk test" one the walk itself
       makes, and deletes three steps below. */
    { do: `document.querySelectorAll('.gbar .iconbtn')[1].click()`, wait: 800 },
    { do: `__click('.halfsheet .row', 'Export')`, name: "export-door", wait: 800 },
    { do: `__click('.halfsheet .row', 'M3U8')`, name: "export-picker", wait: 2600 },
    { adb: ["shell", "input", "keyevent", "4"], name: "export-dismissed", wait: 2000 },