tfq.padded_to_ragged2d

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Utility tf.function that converts a 2d padded tensor to ragged.

Convert a [batch, dim, dim] tf.Tensor padded with -2 to a tf.RaggedTensor using 2d boolean masking.

masked_state tf.Tensor of rank 3 with -2 padding.

state_ragged tf.RaggedTensor of rank 3 with no -2 padding where the outer most dimensions are now ragged instead of padded.