https://github.com/jsonapi-rb/jsonapi-rails/blob/2e1b5b1413225f72d270512a436519791ff2399f/lib/generators/jsonapi/serializable/serializable_generator.rb#L18 That method could be written: ```ruby def model_exists? Rails.application.eager_load! ApplicationRecord.descendants.any? { _1.name == class_name } end ``` Instead of: ```ruby def model_exists? Rails.application.eager_load! models = ApplicationRecord.descendants.map(&:name) !!models.find { |model_name| model_name == class_name } end ```