Don't use blank? when empty? works

Author: adomokos

lib/light-service/context.rb

@@ -116,7 +116,7 @@ def stop_processing?
     end
 
     def define_accessor_methods_for_keys(keys)
-      return if keys.blank?
+      return if keys.empty?
 
       Array(keys).each do |key|
         next if respond_to?(key.to_sym)