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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _close(self, fd):
 """ Close the descriptor used for a path regardless of mode. """

        if self._mode == WF_INOTIFYX:
            try: pynotifyx.rm_watch(self._inx_fd, fd)
            except: pass
        else:
            try: os.close(fd)
            except: pass