112     PyObject * const *fastargs;  in _pickle_Pickler___init__()  local
120 …fastargs = _PyArg_UnpackKeywords(_PyTuple_CAST(args)->ob_item, nargs, kwargs, NULL, &_parser, 1, 4…  in _pickle_Pickler___init__()
121     if (!fastargs) {  in _pickle_Pickler___init__()
124     file = fastargs[0];  in _pickle_Pickler___init__()
128     if (fastargs[1]) {  in _pickle_Pickler___init__()
129         protocol = fastargs[1];  in _pickle_Pickler___init__()
134     if (fastargs[2]) {  in _pickle_Pickler___init__()
135         fix_imports = PyObject_IsTrue(fastargs[2]);  in _pickle_Pickler___init__()
143     buffer_callback = fastargs[3];  in _pickle_Pickler___init__()
332     PyObject * const *fastargs;  in _pickle_Unpickler___init__()  local
341 …fastargs = _PyArg_UnpackKeywords(_PyTuple_CAST(args)->ob_item, nargs, kwargs, NULL, &_parser, 1, 1…  in _pickle_Unpickler___init__()
342     if (!fastargs) {  in _pickle_Unpickler___init__()
345     file = fastargs[0];  in _pickle_Unpickler___init__()
349     if (fastargs[1]) {  in _pickle_Unpickler___init__()
350         fix_imports = PyObject_IsTrue(fastargs[1]);  in _pickle_Unpickler___init__()
358     if (fastargs[2]) {  in _pickle_Unpickler___init__()
359         if (!PyUnicode_Check(fastargs[2])) {  in _pickle_Unpickler___init__()
360             _PyArg_BadArgument("Unpickler", "argument 'encoding'", "str", fastargs[2]);  in _pickle_Unpickler___init__()
364         encoding = PyUnicode_AsUTF8AndSize(fastargs[2], &encoding_length);  in _pickle_Unpickler___init__()
376     if (fastargs[3]) {  in _pickle_Unpickler___init__()
377         if (!PyUnicode_Check(fastargs[3])) {  in _pickle_Unpickler___init__()
378             _PyArg_BadArgument("Unpickler", "argument 'errors'", "str", fastargs[3]);  in _pickle_Unpickler___init__()
382         errors = PyUnicode_AsUTF8AndSize(fastargs[3], &errors_length);  in _pickle_Unpickler___init__()
394     buffers = fastargs[4];  in _pickle_Unpickler___init__()