parser.add_argument('-m','--maxram',dest="maxram",type=str,default="50000000000",help="Maximum amount of RAM allowed for STAR's genome generation step (only change if you get an error from STAR complaining about this value).")
parser.add_argument("--STAR_genomeGenerate_opts",type=str,default="",help="options to pass through to STAR's genomeGenerate function")