# File lib/sinatra/rabbit.rb, line 34
      def initialize
        # The server understood the request, but is refusing to fulfill it. Authorization will not help and the request
        # SHOULD NOT be repeated. If the request method was not HEAD and the server wishes to make public why the request
        # has not been fulfilled, it SHOULD describe the reason for the refusal in the entity. If the server does not wish
        # to make this information available to the client, the status code 404 (Not Found) can be used instead.
        super(403, 'UnsupportedCollection', "Requested collection is not supported for current provider", [])
      end