Method empty

imperative/src/include/megbrain/imperative/subgraph.h:79–79

    SmallVector<bool> gen_input_mask();
    SmallVector<bool> gen_output_mask();
    bool empty() const { return outputs.size() == 0; }
    void replace_vars(const std::unordered_map<size_t, size_t>& replace_map);
    std::string repr() const;
    bool is_single() const;