code: def _find_bad_meta(self):
          '''Fill self._badmeta with meta datatypes that are invalid'''
          self._badmeta = dict()
  
          for datatype in self.meta:
              for item in self.meta[datatype]:
                  if not Dap._meta_valid[datatype].match(item):
                      if datatype not in self._badmeta:
                          self._badmeta[datatype] = []
                      self._badmeta[datatype].append(itemf _find_bad_meta(self):
          '''Fill self._badmeta with meta datatypes that are invalid'''
          self._badmeta = dict()
  
          for datatype in self.meta:
              for item in self.meta[datatype]:
                  if not Dap._meta_valid[datatype].match(item):
                      if datatype not in self._badmeta:
                          self._badmeta[datatype] = []
                      self._badmeta[datatype].append(item)
docs: Fill self._badmeta with meta datatypes that are invalid