A step of the mafft_native implementation. Called by group_align.
See the file header for the source the module follows.
Examples
sc <- normalized_similarity_matrix(seq_type = "aa")
r <- mafft_nw("MKVLA", "MKLA", sc$M, 1, 1, s_op = -1.53)
unlist(r)
#> out1.MKVLA out2.MKLA
#> "MKVLA" "-MKLA"
