return arg.Value, i
		}
	}
	return "", -1
}

// SetArgValues updates the value of one or more arguments or adds a new
// one if missing. The function works backwards in the argument list.
// nArgs holds how many existing arguments with this name should be set.
// If nArgs is less than 1, all of them will be updated.
func SetArgValues(args []Arg, name, value string, nArgs int) []Arg {
	var count int
	var found bool

			expectedArgs: []Arg{{Name: "foo", Value: "bar1"}, {Name: "foo", Value: "bar2"}, {Name: "z", Value: "zz"}},
		},
	}

	for _, rt := range tests {
		t.Run(rt.testName, func(t *testing.T) {
			args := SetArgValues(rt.args, rt.name, rt.value, rt.nArgs)
			if !reflect.DeepEqual(args, rt.expectedArgs) {
				t.Errorf("expected args: %#v, got: %#v", rt.expectedArgs, args)
			}
		})
	}