code: def hasSeries(self):
          
          if len(self.c) and (self.c[0].level == 'series' or (self.c[0].c and self.c[0].c[0])):
              return True
          else:
              return False
docs: Check if this finding aid has series/subseries.
  
             Determined based on level of first component (series) or if first
             component has subcomponents present.
  
             :rtype: boolean