This is a partial I have in another tmpl file:

{{ define "summary" }}
<div class="card summary">
  <div class="header">
    <h2>{{ template "summaryTitle" . }}</h2>
    <div>{{ template "summaryActions" . }}</div>
  </div>
  <div class="body">
    {{ template "summaryBody" . }}
  </div>
</div>
{{ end }}

Now, this is what I have in another tmpl file trying to call the partial above several times:

{{ define "usersSummary" }}
  {{ block "summaryTitle" . }}Users{{ end }}
  {{ block "summaryActions" . }}{{ end }}
  {{ block "summaryBody" . }}{{ template "usersTable" .}}{{ end }}

  {{ template "summary" . }}
{{ end }}

{{ define "productsSummary" }}
  {{ block "summaryTitle" . }}Products{{ end }}
  {{ block "summaryActions" . }}{{ end }}
  {{ block "summaryBody" . }}{{ template "productsTable" .}}{{ end }}

  {{ template "summary" . }}
{{ end }}

{{ define "main" }}
  {{ template "usersSummary" . }}
  {{ template "productsSummary" . }}
{{ end }}