diff --git a/lib/active_interaction/extras/filter_alias.rb b/lib/active_interaction/extras/filter_alias.rb
index ca35238..2c0f75c 100644
--- a/lib/active_interaction/extras/filter_alias.rb
+++ b/lib/active_interaction/extras/filter_alias.rb
@@ -1,16 +1,42 @@
 # frozen_string_literal: true
 
 # Add :as option, which is a read alias to filter
-#   hash :params, as: :account_attributes
+#   hash :account, as: :account_attributes
 #
 module ActiveInteraction::Extras::FilterAlias
   extend ActiveSupport::Concern
 
+  # concern :InputsExtension do
+  #   def normalize(inputs)
+  #     @base.class.filters.each do |name, filter|
+  #       alias_name = filter.options[:as]
+  #
+  #       if alias_name.nil?
+  #         next
+  #
+  #       elsif inputs.key?(alias_name.to_sym)
+  #         inputs[name.to_sym] = inputs[alias_name.to_sym]
+  #
+  #       elsif inputs.key?(alias_name.to_s)
+  #         inputs[name.to_s] = inputs[alias_name.to_s]
+  #       end
+  #     end
+  #
+  #     super
+  #   end
+  # end
+  #
+  # included do
+  #   ActiveInteraction::Inputs.prepend InputsExtension
+  # end
+
   class_methods do
     def initialize_filter(filter)
       super.tap do
         if filter.options[:as]
-          alias_method filter.options[:as], filter.name
+          name = filter.options[:as]
+          alias_method name, filter.name
+          # alias_method "#{name}=", "#{filter.name}="
         end
       end
     end