def default_features
        {
          entities: {
            emotion: true,
            sentiment: true,
            limit: 2
          },
          keywords: {
            emotion: true,
            sentiment: true,
            limit: 2
          }
        }
      end
def default_features
        {
          entities: {
            emotion: true,
            sentiment: true,
            limit: 2
          },
          keywords: {
            emotion: true,
            sentiment: true,
            limit: 2
          }
        }
      end
Default features if no features specified