In the category template there is a code for "Related Categories" (<%~loop related_loop%>), and in the subcategory.html template there is the <%if Related%>@<%endif%>

I don’t understand the difference between this two Related, I see that in the browser when I use the Related it use the <%if Related%>@<%endif%> so what is the use of the <%if related_loop.length~%>, where I use it