};

void DenseToSparsePass::runOnOperation() {
  func::FuncOp func = getOperation();
  OpBuilder builder(func);

  func.walk([&](SparseOpInterface sparse_op) {
    const auto& sparse_operands = sparse_op.GetSparseOperands();
    std::vector<std::vector<int>> supported_block_size;
    for (int operand : sparse_operands) {
      auto* op = sparse_op.getOperation();
      auto value = op->getOperand(operand);