code: def merge_clusters_dereplicated_seqs(de_novo_clusters,
                                       dereplicated_clusters):
      
  
      clusters = {}
  
      for curr_denovo_key in de_novo_clusters.keys():
          clusters[curr_denovo_key] = de_novo_clusters[curr_denovo_key]
          curr_clusters = []
          for curr_denovo_id in de_novo_clusters[curr_denovo_key]:
              curr_clusters += dereplicated_clusters[curr_denovo_id]
          clusters[curr_denovo_key] += curr_clusters
  
      return clusters
docs: combines de novo clusters and dereplicated seqs to OTU id:seqs dict
  
      de_novo_clusters: dict of OTU ID:clustered sequences
      dereplicated_clusters:  dict of seq IDs: dereplicated seq IDs