code: def merge_failures_dereplicated_seqs(failures,
                                       dereplicated_clusters):
      
  
      curr_failures = set(failures)
      dereplicated_ids = set(dereplicated_clusters)
  
      for curr_failure in curr_failures:
          if curr_failure in dereplicated_ids:
              failures += dereplicated_clusters[curr_failure]
  
      return failures
docs: Appends failures from dereplicated seqs to failures list
  
      failures: list of failures
      dereplicated_clusters:  dict of seq IDs: dereplicated seq IDs