If trying to use headers it is not working. individual headers able to set.

http("test-get")
  .get( ";))
  .headers("#{headers}")
  /*.header("Authorization", session -> session.getString("authheader"))
  .header("date", session -> session.getString("date"))
  .header("host", session -> session.getString("host"))*/
  .check(status().saveAs("response_status"))
  .check(responseTimeInMillis().saveAs("response_time"))
  .check(status().is(200))