{{ $section := "influxdb" }}
{{ $currentVersion := (index (findRE "[^/]+.*?" .Page.RelPermalink) 1) }}

<ul>
{{ range where $.Site.RegularPages.ByTitle "Section" $section }}
  {{ if and (in .RelPermalink (print $section "/" $currentVersion "/")) (in .Title "() function")  }}
    {{ $title := replaceRE `\ function` "" .Title }}
    <li>
      <a href="{{ .RelPermalink }}">{{ $title }}</a>
    </li>
  {{ end }}
{{ end }}
</ul>