# File lib/rbrainz/webservice/includes.rb, line 73
      def initialize(includes)
        Utils.check_options includes, 
          :aliases, :artist_rels, :release_rels, :track_rels, :label_rels,
          :url_rels, :tags, :release_groups, :releases, :va_releases, :counts,
          :release_events, :discs, :labels, :user_tags, :ratings, :user_ratings
        @parameters = Array.new
        @parameters << 'aliases'      if includes[:aliases]
        @parameters << 'artist-rels'  if includes[:artist_rels]
        @parameters << 'release-rels' if includes[:release_rels]
        @parameters << 'track-rels'   if includes[:track_rels]
        @parameters << 'label-rels'   if includes[:label_rels]
        @parameters << 'url-rels'     if includes[:url_rels]
        @parameters << 'counts'       if includes[:counts]
        @parameters << 'release-events' if includes[:release_events]
        @parameters << 'release-groups' if includes[:release_groups]
        @parameters << 'discs'        if includes[:discs]
        @parameters << 'labels'       if includes[:labels]
        @parameters << 'tags'         if includes[:tags]
        @parameters << 'user-tags'    if includes[:user_tags]
        @parameters << 'ratings'      if includes[:ratings]
        @parameters << 'user-ratings' if includes[:user_ratings]
        
        includes[:releases].each {|release_type|
          @parameters << 'sa-' + Utils.remove_namespace(release_type.to_s)
        } if includes[:releases]
        
        includes[:va_releases].each {|release_type|
          @parameters << 'va-' + Utils.remove_namespace(release_type.to_s)
        } if includes[:va_releases]
      end