def removeFromCollection(objs)
      method = 'removeFromCollection'
      type = Boolean
      args = {:keys=>Rdio::keys(objs)}
      return_object type,method,args
    end
def removeFromCollection(objs)
      method = 'removeFromCollection'
      type = Boolean
      args = {:keys=>Rdio::keys(objs)}
      return_object type,method,args
    end
Remove tracks or playlists from the current user's collection.