{{ $ref := "" }}
{{ $target := "" }}

{{ with .Get "href" }}
    {{ $ref = . }}
    {{ $target = "_blank" }}
{{ end }}

{{ with .Get "relref" }}
    {{ $ref = relref $ . }}
{{ end }}

<a {{ with $ref }} href="{{.}}" {{ end }} {{ with $target }} target="{{.}}" {{ end }} class="gdoc-btn{{ with .Get "class" }} {{ . }}{{ end }}">
    {{ $.Inner }}
</a>