def METHOD_NAME(*args, **kwargs):
    if logger.isEnabledFor(logging.INFO):
        s: str = "  " * self._indent
        s += f"[observing({suffix})->] "
        s += ",".join((str(x) for x in args))
        if len(args) > 0 and len(kwargs) > 0:
            s += ", "
        for k, v in kwargs.items():
            s += f"{k}->{v}"
        logger.info(s)
    self._indent += 1