Add helper methods for last response

modules/swagger-codegen/src/main/resources/ruby/swagger.mustache

@@ -63,6 +63,14 @@ module {{moduleName}}
         response_body = request.response.body
         Swagger.configuration.auth_token = response_body['token']
       end
+
+      def last_response
+        Thread.current[:swagger_last_response]
+      end
+
+      def last_response=(response)
+        Thread.current[:swagger_last_response] = response
+      end
     end
   end
 end

modules/swagger-codegen/src/main/resources/ruby/swagger/request.mustache

@@ -138,7 +138,7 @@ module {{moduleName}}
         end
 
         # record as last response
-        Thread.current[:swagger_last_response] = @response
+        Swagger.last_response = @response
 
         unless @response.success?
           fail ApiError.new(:code => @response.code,

samples/client/petstore/ruby/lib/petstore/swagger.rb

@@ -63,6 +63,14 @@ module Petstore
         response_body = request.response.body
         Swagger.configuration.auth_token = response_body['token']
       end
+
+      def last_response
+        Thread.current[:swagger_last_response]
+      end
+
+      def last_response=(response)
+        Thread.current[:swagger_last_response] = response
+      end
     end
   end
 end

samples/client/petstore/ruby/lib/petstore/swagger/request.rb

@@ -137,7 +137,7 @@ module Petstore
         end
 
         # record as last response
-        Thread.current[:swagger_last_response] = @response
+        Swagger.last_response = @response
 
         unless @response.success?
           fail ApiError.new(:code => @response.code,