Method get_epoll

crates/stdlib/src/select.rs:623–629

(
                &self,
                vm: &VirtualMachine,
            )

            }

            fn get_epoll(
                &self,
                vm: &VirtualMachine,
            ) -> PyResult<impl Deref<Target = OwnedFd> + '_> {
                PyRwLockReadGuard::try_map(self.epoll_fd.read(), |x| x.as_ref())
                    .map_err(|_| vm.new_value_error("I/O operation on closed epoll object"))
            }

            #[pymethod]
            fn fileno(&self, vm: &VirtualMachine) -> PyResult<i32> {