library(immuneSIM) generate_repertoires <- function(number_of_sequences) { a_chain <- immuneSIM( number_of_seqs = number_of_sequences, species = "hs", receptor = "tr", chain = "a", verbose = TRUE ) b_chain <- immuneSIM( number_of_seqs = number_of_sequences, species = "hs", receptor = "tr", chain = "b", verbose = TRUE ) return(list("a_chain" = a_chain, "b_chain" = b_chain)) }