Unsupported ops TF 2.14.0: OnesLike not supported

[Gerstenberger]

New Operator

Describe the operator

With tensorflow==2.14.0 the conversion of op OnesLike yields the error

Tensorflow op [output/rec/dec_0_self_att_att/ones_like: OnesLike] is not supported

which works fine using tensorflow==2.13.1.

Do you know this operator be constructed using existing ONNX operators?

yes, similar to ZerosLike using ConstantOfShape

Is this operator used by any model currently? Which one?

yes, in our SelfAttention (used eg. in our Transformer models) implementation for masking.

Are you willing to contribute it? (Y/N)

yes

Notes

For some notes see issue rwth-i6/returnn#1455
The onnx package versions used

tf2onnx==1.15.1
onnx==1.15.0
onnxruntime==1.16.1