Marshall map to XML in Go -

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i'm trying output map xml data, receive following error: 

xml: unsupported type: map[string]int

marshalling maps works fine json don't why wouldn't work same xml. using struct way?

i ended solving using xml.marshaler suggested dave c

// stringmap map[string]string. type stringmap map[string]string  // stringmap marshals xml. func (s stringmap) marshalxml(e *xml.encoder, start xml.startelement) error {      tokens := []xml.token{start}      key, value := range s {         t := xml.startelement{name: xml.name{"", key}}         tokens = append(tokens, t, xml.chardata(value), xml.endelement{t.name})     }      tokens = append(tokens, xml.endelement{start.name})      _, t := range tokens {         err := e.encodetoken(t)         if err != nil {             return err         }     }      // flush ensure tokens written     err := e.flush()     if err != nil {         return err     }      return nil }

source: https://gist.github.com/jackspirou/4477e37d1f1c043806e0

now map can marshalled calling 

output, err := xml.marshalindent(data, "", "  ")

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