class AASM::Core::Invokers::LiteralInvoker

def exec_subject
  raise(*record_error) unless record.respond_to?(subject, true)
  return record.__send__(subject) if subject_arity.zero?
  return record.__send__(subject, *args) if subject_arity < 0
  req_args = args[0..(subject_arity - 1)]
  return record.__send__(subject, **req_args[0]) if req_args[0].is_a?(Hash)
  record.__send__(subject, *req_args)
end