// Creates a pass to convert MLIR to Graph, run user-specified Graph
// Optimization Passes and convert back to MLIR.
// Constraints: This pass expects that all operations in the MLIR module either
// belong to 'tf' or '_tf' dialect. The output is in '_tf' dialect.
class GraphOptPass
    : public mlir::PassWrapper<GraphOptPass,
                               mlir::OperationPass<mlir::ModuleOp>> {