define_method_attribute=

# File activemodel/lib/active_model/attributes.rb, line 46
        def define_method_attribute=(name)
          ActiveModel::AttributeMethods::AttrNames.define_attribute_accessor_method(
            generated_attribute_methods, name, writer: true,
          ) do |temp_method_name, attr_name_expr|
            generated_attribute_methods.module_eval               def #{temp_method_name}(value)                name = #{attr_name_expr}                write_attribute(name, value)              end, __FILE__, __LINE__ + 1
          end
        end