docs: def _log(self, lvl, msg, type, args, kwargs):
          """
          Internal method to filter into the formatter before being passed to the main Python logger
          """
          extra = kwargs.get('extra', {})
          extra.setdefault("fastlog-type", type)
          extra.setdefault("fastlog-indent", self._indent)
          kwargs['extra'] = extra
  
          self._lastlevel = lvl
  
          self.inner.log(lvl, msg, *args, **kwargs)