Method get_val

subprojects/llama.cpp/common/jinja/runtime.h:81–84

    }

    value get_val(const std::string & name) {
        value default_val = mk_val<value_undefined>(name);
        return env->at(name, default_val);
    }

    void set_val(const std::string & name, const value & val) {
        env->insert(name, val);