Unable to use extends with a collection and node in the partial.

[ericgross]

I have a RABL template that shows a collection (/api/friends/index.json.rabl):

collection @friends
node(:uid) { |f| f['uid'] }

This works fine. I want to break out the node though into a partial so that I can reuse it elsewhere. I have tried this:

/api/friends/index.json.rabl:

extends 'api/friends/show'
collection @friends

And the partial (/api/friends/show.json.rabl):

node(:uid) { |f| f['uid'] }

But I am getting this error:

TypeError in Api/friends#index

Showing /opt/appname/app/views/api/friends/index.json.rabl where line #1 raised:

can't convert String into Integer
Extracted source (around line #1):

1: extends 'api/friends/show'
2: collection @friends

It seems to me that extends is what I am looking for rather than partial because I want it at the top level (not inside of a child).