Reads a line from the data input stream.
Wraps [method@Gio.DataInputStream.read_line_async].
| stream |
a [class@Gio.DataInputStream] |
| io_priority |
the IO priority of the request |
|
a [class@Dex.Future] that resolves to a string containing the line (without the line terminator), or null if the end of the stream is reached. |