filesDir = _files.getFilesDir()


def fn1(fileBuilder):
    fileBuilder.setPath(filesDir, "tmp/aaa.txt")


file = _files.buildFile(fn1)
file.writeText("hello world", "UTF-8")


def fn2(it):
    _console.log(it)


file.forEachLine("UTF-8", fn2)
file.delete()