@rule(SoAndSo, [JvmArgs, CompileArgs])
def connect_to_nailgun(jvm_args, compile_args):
    nailgun_epr = EPR(argv = jvm_args)
    compile_epr = CompileEPR(
                     argv = nailgun_epr.argv + compile_args
                     nailgun_EPR = nailgun_epr
                  )