Katherine Wu 4ad4b488c9 Add Keras metadata proto.
The metadata of each Keras model/layer will be moved from the SavedModel to a separate keras.metadata file.

PiperOrigin-RevId: 337394096
Change-Id: Iccba44c8478e038fc9de036313c2e7e88fd5605d
2020-10-15 15:29:37 -07:00
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2020-10-15 15:29:37 -07:00
2020-10-15 15:29:37 -07:00