Method clone

tools/train/source/nn/NN.cpp:69–73

    DropoutModule() = default;

    Module* clone(CloneContext* ctx) const override {
        DropoutModule* module(new DropoutModule);
        module->mDropRatio = mDropRatio;
        return this->cloneBaseTo(ctx, module);
    }

    float mDropRatio;
};