decorate_attribute_type

# File activerecord/lib/active_record/attributes.rb, line 276
        def decorate_attribute_type(attr_name, **default)
          type, options = attributes_to_define_after_schema_loads[attr_name]

          default.with_defaults!(default: options[:default]) if options&.key?(:default)

          attribute(attr_name, **default) do |cast_type|
            if type && !type.is_a?(Proc)
              cast_type = _lookup_cast_type(attr_name, type, options)
            end

            yield cast_type
          end
        end