// is marked as a stateful operand.
  bool IsStatefulOperand(mlir::Operation* op, int operand_index);

  // Returns a unique name for `val`.
  std::string UniqueName(mlir::Value val);

  BufferOffset<tflite::SparsityParameters> BuildSparsityParameters(
      const mlir::TFL::SparsityParameterAttr& s_attr);

  bool EstimateArithmeticCount(int64_t* count);

  // Check compatibility with GPU delegate and returns the compatibility.