fix: fix

src/dbus_fast/message.pxd

@@ -7,6 +7,21 @@ cdef unsigned int LITTLE_ENDIAN
 cdef unsigned int BIG_ENDIAN
 cdef unsigned int PROTOCOL_VERSION
 
+cdef unsigned int HEADER_PATH
+cdef unsigned int HEADER_INTERFACE
+cdef unsigned int HEADER_MEMBER
+cdef unsigned int HEADER_ERROR_NAME
+cdef unsigned int HEADER_REPLY_SERIAL
+cdef unsigned int HEADER_DESTINATION
+cdef unsigned int HEADER_SIGNATURE
+cdef unsigned int HEADER_UNIX_FDS
+
+cdef unsigned int METHOD_CALL
+cdef unsigned int SIGNAL
+cdef unsigned int ERROR
+cdef unsigned int METHOD_RETURN
+
+
 cdef class Message:
 
     cdef public str destination
@@ -16,13 +31,13 @@ cdef class Message:
     cdef public object message_type
     cdef public object flags
     cdef public str error_name
-    cdef public unsigned int reply_serial
+    cdef public object reply_serial
     cdef public str sender
     cdef public list unix_fds
     cdef public str signature
     cdef public object signature_tree
     cdef public list body
-    cdef public unsigned int serial
+    cdef public object serial
 
     @cython.locals(
         fields=cython.list,

src/dbus_fast/message.py

@@ -21,6 +21,11 @@
 HEADER_SIGNATURE = HeaderField.SIGNATURE.value
 HEADER_UNIX_FDS = HeaderField.UNIX_FDS.value
 
+METHOD_CALL = MessageType.METHOD_CALL.value
+SIGNAL = MessageType.SIGNAL.value
+ERROR = MessageType.ERROR.value
+METHOD_RETURN = MessageType.METHOD_RETURN.value
+
 
 class Message:
     """A class for sending and receiving messages through the
@@ -139,24 +144,24 @@ def __init__(
         if self.error_name is not None:
             assert_interface_name_valid(self.error_name)
 
-        if message_type == MessageType.METHOD_CALL:
+        if message_type == METHOD_CALL:
             if not path:
                 raise InvalidMessageError(f"missing required field: path")
             if not member:
                 raise InvalidMessageError(f"missing required field: member")
-        elif message_type == MessageType.SIGNAL:
+        elif message_type == SIGNAL:
             if not path:
                 raise InvalidMessageError(f"missing required field: path")
             if not member:
                 raise InvalidMessageError(f"missing required field: member")
             if not interface:
                 raise InvalidMessageError(f"missing required field: interface")
-        elif message_type == MessageType.ERROR:
+        elif message_type == ERROR:
             if not error_name:
                 raise InvalidMessageError(f"missing required field: error_name")
             if not reply_serial:
                 raise InvalidMessageError(f"missing required field: reply_serial")
-        elif message_type == MessageType.METHOD_RETURN:
+        elif message_type == METHOD_RETURN:
             if not reply_serial:
                 raise InvalidMessageError(f"missing required field: reply_serial")
         else:

src/dbus_fast/signature.pxd

@@ -11,8 +11,6 @@ cdef class SignatureType:
 
     cdef _collapse(self)
 
-    cdef _parse_next(self)
-
 
 cdef class SignatureTree: