in src/google.rs [97:100]
fn test_build_threaded_webhook_without_placeholder() {
let result = GoogleChatMessage::build_webhook_url("https://example.com/ABCDEF", "1234");
assert_eq!(Result::unwrap(result), String::from("https://example.com/ABCDEF?messageReplyOption=REPLY_MESSAGE_FALLBACK_TO_NEW_THREAD&threadKey=1234"))
}