options are optional in replicate.wait() (#122)

* options are optional in replicate.wait()

* Use && instead of ?.

---------

Co-authored-by: Mattt <[email protected]>

Author: zeke

index.js

@@ -271,7 +271,7 @@ class Replicate {
     // eslint-disable-next-line no-promise-executor-return
     const sleep = (ms) => new Promise((resolve) => setTimeout(resolve, ms));
 
-    const interval = options.interval || 500;
+    const interval = (options && options.interval) || 500;
 
     let updatedPrediction = await this.predictions.get(id);