code: def _clean_cluster(list_c):
      
      global REMOVED
      init = len(list_c)
      list_c = {k: v for k, v in list_c.iteritems() if len(_get_seqs(v)) > parameters.min_seqs}
      logger.debug("_clean_cluster: number of clusters %s " % len(list_c.keys()))
      list_c = {k: _select_loci(v) for k, v in list_c.iteritems()}
      end = len(list_c)
      REMOVED += init - end
      return list_c
docs: Remove cluster with less than 10 sequences and
      loci with size smaller than 60%