Number(gint) regress_test_closure_one_arg Function closure Number(gint) arg Regress.test_closure_one_arg function test_closure_one_arg(closure: Function, arg: Number(gint)): Number(gint) { // Gjs wrapper for regress_test_closure_one_arg() } <code>closure</code> <code>arg</code> <code>Returns</code>