Function load

imperative/python/src/ops.cpp:237–253

        Py_RETURN_NOTIMPLEMENTED;
    }
    static bool load(py::handle src, T& value) {
        PyObject* obj = src.ptr();
        if (PyObject_TypeCheck(obj, type)) {
            value = reinterpret_cast<EnumWrapper*>(obj)->value;
            return true;
        }
        if (py::isinstance<py::str>(src)) {
            auto&& iter = mem2value.find(normalize_enum(py::cast<std::string>(src)));
            if (iter != mem2value.end()) {
                value = iter->second;
                return true;
            } else {
                return false;
            }
        }
        return false;
    }
    static PyObject* cast(const T& value) {
        auto v = static_cast<std::underlying_type_t<T>>(value);
        mgb_assert(v <= EnumTrait<T>::max);