class ElasticAPM::Transport::Serializers::ErrorSerializer

def build_exception(exception)
  {
    message: exception.message,
    type: keyword_field(exception.type),
    module: keyword_field(exception.module),
    code: keyword_field(exception.code),
    attributes: exception.attributes,
    stacktrace: exception.stacktrace.to_a,
    handled: exception.handled,
    cause: exception.cause && [build_exception(exception.cause)]
  }
end