add module enjo_lib.comm.method, move stuff to there

enjo_lib/comm/method/interface.py

@@ -14,7 +14,7 @@ from typing import (
     TypeAlias,
 )
 
-from ..our_types import (
+from ...our_types import (
     JSON,
 )
 

enjo_lib/comm/method/internal.py

@@ -3,12 +3,12 @@ from __future__ import annotations
 import asyncio
 from functools import partial
 
-from .method import (
+from .interface import (
     MessageHandler,
     TransportMethod,
     TransmissionSuccess,
 )
-from ..our_types import JSON
+from ...our_types import JSON
 
 
 class InternalTransport(TransportMethod):

test/comm/method/internal_test.py

@@ -10,7 +10,7 @@ from unittest.mock import (
     MagicMock,
 )
 
-from enjo_lib.comm.internal import (
+from enjo_lib.comm.method.internal import (
     InternalExchanger,
     InternalTransport,
 )