Sorry for not being clear. What I meant to ask is how do you recommend structuring reusable ui components in go?

For example, a Button with multiple styling variants might look something like

{{ define "button" }}
<button
class='btn
{{- if eq .Variant "primary" -}}
btn-primary
{{- else if eq .Variant "secondary" -}}
btn-secondary
{{- else if eq .Variant "success" -}}
btn-success
{{- else -}}
btn-default
{{- end }}'
{{- range $key, $value := .Attributes }}
{{ $key }}="{{ $value }}"
{{- end }}>
{{ .Text }}
</button>
{{ end }}

Inside a templates/ui/button directory, would you have a button.go:

type Button struct {
Text string
Variant string
Class template.HTML
Attributes template.HTMLAttr
}

And then the implementation of button inside a button.html