class RBS::DefinitionBuilder::AncestorBuilder::OneAncestors

def self.class_instance(type_name:, params:, super_class:)
  new(
    type_name: type_name,
    params: params,
    super_class: super_class,
    self_types: nil,
    included_modules: [],
    included_interfaces: [],
    prepended_modules: [],
    extended_modules: nil,
    extended_interfaces: nil
  )
end