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PiperOrigin-RevId: 555651194

Author: tensorflower-gardener

official/vision/configs/retinanet.py

@@ -154,7 +154,7 @@ class DetectionGenerator(hyperparams.Config):
   use_class_agnostic_nms: Optional[bool] = False
   # Weights or scales when encode and decode boxes coordinates. For Faster RCNN,
   # the open-source implementation recommends using [10.0, 10.0, 5.0, 5.0].
-  box_coder_weights: list[float] | None = None
+  box_coder_weights: Optional[List[float]] = None
 
 
 @dataclasses.dataclass