Partial "inheritance" - is it possible?

my-single-post-info.html

<!-- 
I would like this to retrieve the partial from the theme. 
I would also like this file to be called single-post-info.html so that I do not have to edit single.html, which comes from the theme
-->
{{ partial "single-post-info.html" . }}

<!-- Add my own stuff here -->

single-post-info.html

<div class="post-info">
    <span>{{ i18n "writtenBy" }}</span>
    {{- if .Params.Author }}
        {{ .Params.Author }}
    {{- else }}
        {{ .Site.Params.Author }}
    {{- end }}

    {{- if .PublishDate }}
        <br>
        <span>{{ i18n "on" }}&nbsp;</span><time datetime="{{ .PublishDate }}">{{ i18n "publishdate" . }}</time>
    {{- end }}
</div>

single.html

{{ define "main" }}

<main>
	<div class="post">
		{{ partial "single-post-info.html" . }}

		<h1 class="post-title">{{ .Title }}</h1>
		<div class="post-line"></div>

		{{ .Content }}

	</div>

	<div class="pagination">
		{{- if .Next }}
		<a href="{{ .Next.URL }}" class="left arrow">&#8592;</a>
		{{- end }}
		{{- if .Prev }}
		<a href="{{ .Prev.URL }}" class="right arrow">&#8594;</a>
		{{- end }}

		<a href="#" class="top">Top</a>
	</div>
</main>

{{ end }}