add support for failures

Author: gmartini20

lib/convertkit.rb

@@ -24,6 +24,7 @@
 require 'convertkit/resources/subscriber_bulk_create_failure_response'
 require 'convertkit/resources/subscriber_bulk_remove_tag_response'
 require 'convertkit/resources/subscriber_bulk_tag_failure_response'
+require 'convertkit/resources/subscriber_tag_response'
 require 'convertkit/resources/subscribers'
 require 'convertkit/resources/subscribers_response'
 require 'convertkit/resources/subscription_response'

lib/convertkit/resources/subscriber_bulk_tag_failure_response.rb

@@ -1,10 +1,10 @@
 module ConvertKit
   module Resources
     class SubscriberBulkTagFailureResponse
-      attr_accessor :subscriber, :errors
+      attr_accessor :tagging, :errors
 
       def initialize(response)
-        @subscriber = SubscriberResponse.new(response['subscriber']) if response['subscriber']
+        @tagging = SubscriberTagResponse.new(response['tagging']) if response['tagging']
         @errors = response['errors']
       end
     end

lib/convertkit/resources/subscriber_tag_response.rb

@@ -0,0 +1,12 @@
+module ConvertKit
+  module Resources
+    class SubscriberTagResponse
+      attr_accessor :tag_id, :subscriber_id
+
+      def initialize(response)
+        @tag_id = response['tag_id']
+        @subscriber_id = response['subscriber_id']
+      end
+    end
+  end
+end