code: function(conversationId, callback) {
        conversationId = utils.toUUID(conversationId);
        if (!conversationId) return callback(new Error(utils.i18n.conversations.id));
        utils.debug('Conversation get: ' + conversationId);
  
        request.get({
          path: '/conversations/' + conversationId
        }, callback);
      }
docs: Retrieve a conversation
  
  @param  {String}   conversationId  Conversation ID
  @param  {Function} callback        Callback function