github.com/neugram/ng@v0.0.0-20180309130942-d472ff93d872/eval/testdata/func2_error.ng (about)

     1  func f(x, y, z int) { }
     2  func g() (int, int) { return 0, 0 }
     3  f(1, g()) // ERROR: multi-valued g() used in single-valued context