Method load

imperative/python/src/ops.cpp:489–500

namespace PYBIND11_NAMESPACE {
namespace detail {
bool type_caster<OpDef>::load(handle src, bool convert) {
    PyObject* obj = src.ptr();
    if (!PyObject_TypeCheck(obj, &PyOpType(OpDef))) {
        return false;
    }
    value = reinterpret_cast<PyOp(OpDef)*>(obj)->op;
    if (!value) {
        // opdef only defined in Python
        value = std::make_shared<GenericPyOp>(reinterpret_borrow<object>(src));
    }
    return true;
}
handle type_caster<OpDef>::cast(const OpDef& op, return_value_policy, handle) {
    if (auto* pyop = op.try_cast_final<GenericPyOp>()) {
        return object(pyop->obj).release();