Moved MessageType to io.xml.enums.

Signed-off-by: javier.hernandez <javier.hernandez@meaningfuldata.eu>

src/pysdmx/io/xml/enums.py

@@ -0,0 +1,16 @@
+"""Enumeration for the XML message types."""
+
+from enum import Enum
+
+
+class MessageType(Enum):
+    """MessageType enumeration.
+
+    Enumeration that withholds the Message type for writing purposes.
+    """
+
+    GenericDataSet = 1
+    StructureSpecificDataSet = 2
+    Structure = 3
+    Error = 4
+    Submission = 5

src/pysdmx/io/xml/sdmx21/writer/__init__.py

@@ -2,6 +2,7 @@
 
 from typing import Any, Dict, Optional
 
+from pysdmx.io.xml.enums import MessageType
 from pysdmx.io.xml.sdmx21.writer.__write_aux import (
     __write_header,
     create_namespaces,
@@ -10,7 +11,7 @@
 from pysdmx.io.xml.sdmx21.writer.structure import (
     generate_structures,
 )
-from pysdmx.model.message import Header, MessageType
+from pysdmx.model.message import Header
 
 
 def writer(

src/pysdmx/io/xml/sdmx21/writer/__write_aux.py

@@ -3,7 +3,8 @@
 from collections import OrderedDict
 from typing import Any, Dict, Optional
 
-from pysdmx.model.message import Header, MessageType
+from pysdmx.io.xml.enums import MessageType
+from pysdmx.model.message import Header
 
 MESSAGE_TYPE_MAPPING = {
     MessageType.GenericDataSet: "GenericData",

src/pysdmx/model/message.py

@@ -11,19 +11,6 @@
 from msgspec import Struct
 
 
-class MessageType(Enum):
-    """MessageType enumeration.
-
-    Enumeration that withholds the Message type for writing purposes.
-    """
-
-    GenericDataSet = 1
-    StructureSpecificDataSet = 2
-    Structure = 3
-    Error = 4
-    Submission = 5
-
-
 class ActionType(Enum):
     """ActionType enumeration.
 

tests/io/xml/sdmx21/writer/test_structures_writing.py

@@ -3,10 +3,10 @@
 
 import pytest
 
+from pysdmx.io.xml.enums import MessageType
 from pysdmx.io.xml.sdmx21.writer import Header, writer
 from pysdmx.model import Agency, Code, Codelist, Concept, ConceptScheme
 from pysdmx.model.__base import Annotation
-from pysdmx.model.message import MessageType
 
 TEST_CS_URN = (
     "urn:sdmx:org.sdmx.infomodel.conceptscheme."