Fixed codeclimate issues

lib/serializers/repp/api_user.rb

@@ -7,6 +7,7 @@ module Serializers
         @user = user
       end
 
+      # rubocop:disable Metrics/MethodLength
       def to_json(obj = user)
         json = {
           id: obj.id,
@@ -24,6 +25,7 @@ module Serializers
         json[:certificates] = certificates
         json
       end
+      # rubocop:enable Metrics/MethodLength
 
       private
 

lib/serializers/repp/invoice.rb

@@ -81,7 +81,7 @@ module Serializers
           total: invoice.total,
           recipient: invoice.buyer.billing_email,
           monthly_invoice: invoice.monthly_invoice,
-          reference_no: invoice.reference_no
+          reference_no: invoice.reference_no,
         }
       end
       # rubocop:enable Metrics/MethodLength