compat_signature_entry

# File actionwebservice/lib/action_web_service/api.rb, line 236
        def compat_signature_entry(entry)
          if entry.array?
            [compat_signature_entry(entry.element_type)]
          else
            if entry.spec.is_a?(Hash)
              {entry.spec.keys.first => entry.type_class}
            else
              entry.type_class
            end
          end
        end