will branch off into a maps test

client/test/test.go

@@ -21,13 +21,17 @@ func main() {
 		Ignore: []string{"one", "two", "four", "seven"},
 	}
 
-	mergo.Merge(&dest, src, mergo.WithTransformers())
+	mergo.Merge(&dest, src, mergo.WithTransformers(StringSliceTransformer{}))
 	fmt.Println(dest)
 	// Will print
 	// {two 2}
 }
 
-func MergeStrings(typ reflect.Type) func(dst, src reflect.Value) error {
+type StringSliceTransformer struct {
+}
+
+// MergeStrings merges two strings
+func (s StringSliceTransformer) Transformer(typ reflect.Type) func(dst, src reflect.Value) error {
 	if typ == reflect.TypeOf([]string{}) {
 		return func(dst, src reflect.Value) error {