Our friends at LambdaTest built and maintain this integration -- you can find their documentation for setting it up here.
If you experience any issues or the integration breaks, please reach out to them.
Updated
<% if (previousArticle) { %>
<% } %>
<% if (items.length > 1) { %>
<% if (previousTitle) { %>
<% } %>
<% if (nextArticle) { %>
<%= previousTitle %>
<% } %> <%= previousArticle.title %>
<% if (nextTitle) { %>
<% } %>
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