code: def _getIndxChop(self, indx):
          '''
          A helper method for Type subclasses to use for a simple way to truncate
          indx bytes.
          '''
          # cut down an index value to 256 bytes...
          if len(indx) <= 256:
              return indx
  
          base = indx[:248]
          sufx = xxhash.xxh64(indx).digest()
          return base + suff _getIndxChop(self, indx):
          '''
          A helper method for Type subclasses to use for a simple way to truncate
          indx bytes.
          '''
          # cut down an index value to 256 bytes...
          if len(indx) <= 256:
              return indx
  
          base = indx[:248]
          sufx = xxhash.xxh64(indx).digest()
          return base + sufx
docs: A helper method for Type subclasses to use for a simple way to truncate
          indx bytes.