def METHOD_NAME(self) -> None:
    """Closes the database connection."""
    if hasattr(self, "db") and self.db is not None:
        bes = -1
        TimDb.instances -= 1
        try:
            # bes = self.get_pg_connections()
            self.db.METHOD_NAME()
        except Exception as err:
            log_error("close error: " + str(self.num) + " " + str(err))
        log_debug(
            f"TimDb-dstr {worker_pid:2d} {self.num:6d} {TimDb.instances:2d} {bes:3d} {time.time() - self.time:7.5f} {self.route_path:s}"
        )
        self.reset_attrs()