<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def hide(self):
 """Hide the spinner to allow for custom writing to the terminal."""

        thr_is_alive = self._spin_thread and self._spin_thread.is_alive()

        if thr_is_alive and not self._hide_spin.is_set():
            # set the hidden spinner flag
            self._hide_spin.set()

            # clear the current line
            sys.stdout.write("\r")
            self._clear_line()

            # flush the stdout buffer so the current line can be rewritten to
            sys.stdout.flush()