libmoosex-types-json-perl 0.02-1 (i386 binary) in ubuntu maverick

 MooseX::Types::JSON is a Moose extension that provides type constraints that
 validate strings in the JavaScript Object Notation (JSON) format. It can use
 either the JSON or relaxed JSON specifications and depends on JSON::XS to do
 the heavy lifting (see libjson-xs-perl for details).