code: def add_protein_sequence_args(parser):
      
      protein_sequence_group = parser.add_argument_group(
          "Protein sequences (grouping equivalent translations)")
      protein_sequence_group.add_argument(
          "--max-protein-sequences-per-variant",
          type=int,
          default=MAX_PROTEIN_SEQUENCES_PER_VARIANT)
      return protein_sequence_group
docs: Extends an ArgumentParser instance with the following args:
          --max-protein-sequences-per-variant
      Also adds all translation arguments such as:
          --protein-sequence-length