Fix

handler.py

@@ -51,7 +51,7 @@ class EndpointHandler():
             annotated_frame = annotate(image_source=image_source, boxes=boxes, logits=logits, phrases=phrases)
             _, annotated_image = cv2.imencode(".jpg", annotated_frame)
             annotated_image_b64 = base64.b64encode(annotated_image).decode("utf-8")
-            num_found = boxes.size[0]
+            num_found = boxes.size(0)
 
             return [{
                 "image": annotated_image_b64,