This is because pikepdf < 1.19.0 is incompatible with bybind11 2.6. This was fixed in https://github.com/pikepdf/pikepdf/commit/5394b7855eb87f637316432b2b597294adcb974e
This is because pikepdf < 1.19.0 is incompatible with bybind11 2.6. This was fixed in https://github.com/pikepdf/pikepdf/commit/5394b7855eb87f637316432b2b597294adcb974e