Merged commit includes the following changes:

237836124  by A. Unique TensorFlower<gardener@tensorflow.org>:

    Internal changes

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237831779  by A. Unique TensorFlower<gardener@tensorflow.org>:

    Fix rnn.reset_states() to throw proper error when before .build() is invoked.

    See https://github.com/tensorflow/tensorflow/issues/25852 for more details.

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237814078  by A. Unique TensorFlower<gardener@tensorflow.org>:

    Fix GatherV2 converter. It assumed that the IGatherLayer has same output dimensions as tf.gather, which is not the case.

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237814023  by A. Unique TensorFlower<gardener@tensorflow.org>:

    Split py_binary into py_binary and py_library to avoid having py_binary in deps.

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PiperOrigin-RevId: 237836124