code: def filter_data(self, pattern=''):
          
          filtered_profiles = {}
          with open(self.abspath) as fobj:
              for idx, line in enumerate(fobj):
                  if 'TIME SERIES' in line:
                      break
                  if pattern in line and (idx-self._attributes['CATALOG']-1) > 0:
                      filtered_profiles[idx-self._attributes['CATALOG']-1] = line
          return filtered_profiles
docs: Filter available varaibles