docs: def get(self, keys, default=None):
          """
          To get a value by dot notation
          :param keys: dot notaion string
          :param default:
          :return:
          """
          try:
              d = self
              for k in keys.split("."):
                  if not k in d:
                      d[k] = {}
                  d = d[k]
              if isinstance(d, bool):
                  return d
              return d or default
          except (TypeError, KeyError) as e:
              return default