Fix code

Author: MaximeRVY

lib/grape-swagger/entity/helper.rb

@@ -13,7 +13,7 @@ def model_name(entity_model, endpoint)
 
         def discriminator(entity_model)
           entity_model.superclass.root_exposures.detect do |value|
-            value.documentation.try(:[], :is_discriminator)
+            value.documentation.dig(:is_discriminator)
           end
         end
 

spec/spec_helper.rb

@@ -7,7 +7,6 @@
 
 require 'rack'
 require 'rack/test'
-require 'pry'
 
 RSpec.configure do |config|
   require 'rspec/expectations'