from cpython.ref cimport PyObject cdef extern from "capnp/helpers/capabilityHelper.h": cppclass PythonInterfaceDynamicImpl: PythonInterfaceDynamicImpl(PyObject *) cdef extern from "capnp/helpers/capabilityHelper.h": void reraise_kj_exception() cdef cppclass PyRefCounter: PyRefCounter(PyObject *) cdef extern from "capnp/helpers/rpcHelper.h": cdef cppclass PyRestorer: PyRestorer(PyObject *) cdef cppclass ErrorHandler: pass cdef extern from "capnp/helpers/asyncHelper.h": cdef cppclass PyEventPort: PyEventPort(PyObject *)