Typehint the parts of python-mpd2 I'm using too

stubs/mpd/base.pyi

@@ -0,0 +1,23 @@
+from enum import Enum
+
+class FailureResponseCode(Enum):
+    NOT_LIST: int
+    ARG: int
+    PASSWORD: int
+    PERMISSION: int
+    UNKNOWN: int
+    NO_EXIST: int
+    PLAYLIST_MAX: int
+    SYSTEM: int
+    PLAYLIST_LOAD: int
+    UPDATE_ALREADY: int
+    PLAYER_SYNC: int
+    EXIST: int
+
+class MPDError(Exception): ...
+
+class CommandError(MPDError):
+    pass
+
+class MPDClientBase:
+    pass