%input:csv annotation

Trying to use the example, in the RESTXQ section of the documentation:

declare %rest:path("/store.csv") %rest:POST("{$csv}") %input:csv("header=true,encoding=CP1252") function page:store-csv($csv as document-node()) { "Number of rows: " || count($csv/csv/record) };

Using:

curl -i -XPOST –data @test.csv<mailto:data at test.csv> -H’Content-Type: text/csv’ http://blah/basex/store.csv

The result is [XPTY0004] Cannot cast xs:string to document-node()

I can just invoke csv:parse but, is the example missing a detail?

Kendall