diff --git a/python/tasks/cython.py b/python/tasks/cython.py
index ac51eb0..b8f337d 100644
--- a/python/tasks/cython.py
+++ b/python/tasks/cython.py
@@ -135,7 +135,7 @@ def mypyc_build(file_path: pathlib.Path) -> Any:
             [str(source_path)],
             target_dir=str(output_dir / 'build')
         )
-        t1.build_temp = str(output_dir)
+        t1.build_temp = output_dir
         t1.build_lib = lib_dir
         #t2 = Cython.Build.Inline.Extension(
         #    name=sha256sum,
@@ -153,6 +153,16 @@ def mypyc_build(file_path: pathlib.Path) -> Any:
 
     raise NotImplementedError
 
+class Source:
+    @staticmethod
+    def test2(
+        _a : numpy.ndarray[Any, numpy.dtype[numpy.int64]],
+        _id : numpy.dtype[numpy.int32] | int,
+        T : float=16
+    ) -> int:
+        raise NotImplementedError
+
+
 source = build(r'''
 cimport cython
 
@@ -214,7 +224,7 @@ def test2(long long [:] _a,  int _id, double T=16) -> int:
 
     return _a[_id]
 
-''')
+''', Source)
 
 def test_cython(N: int=4, T:int=16):
     #a = [0] * N