class_docstr: Computes the forward decoding in a linear-chain CRF.
class_docstr_tok: ["Computes","the","forward","decoding","in","a","linear-chain","CRF","."]
docstr: Returns count of tags.
docstr_tok: ["Returns","count","of","tags","."]
code: def output_size(self) -> int:
      """Returns count of tags."""
      return self._num_tags
  
imports: import tensorflow
  from tensorflow import TensorShape
  from tensorflow.types.experimental import TensorLike
  from typing import Tuple, Any, List, Union, Optional
label_desc: Use image node_id 3 for calling the CrfDecodeForwardRnnCell obj's underlying member method code with example usage: obj.output_size() and returns: self