for all the RNG in Keras. We plan to switch on the new code path by
        default in tf 2.8, and the behavior change will likely to cause some
        breakage on user side (eg if the test is checking against some golden
        number). These 3 APIs will allow user to disable and switch back to
        legacy behavior if they prefer. In future (eg TF 2.10), we expect to

1F977..1F978  ; valid                  ;      ; NV8    # 13.0 NINJA..DISGUISED FACE
1F979         ; valid                  ;      ; NV8    # 14.0 FACE HOLDING BACK TEARS
1F97A         ; valid                  ;      ; NV8    # 11.0 FACE WITH PLEADING EYES
1F97B         ; valid                  ;      ; NV8    # 12.0 SARI

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