require 'maasha/biopieces'
require 'maasha/seq'
+include BackTrack
+
casts = []
casts << {:long=>'forward', :short=>'f', :type=>'string', :mandatory=>true, :default=>nil, :allowed=>nil, :disallowed=>nil}
casts << {:long=>'reverse', :short=>'r', :type=>'string', :mandatory=>true, :default=>nil, :allowed=>nil, :disallowed=>nil}