feat: missing class attribute for registration

multi_user/io_bpy/bl_collection.py

@@ -132,3 +132,6 @@ class BlCollection(ReplicatedDatablock):
     @staticmethod
     def resolve_deps(datablock: object) -> [object]:
         return resolve_collection_dependencies(datablock)
+
+_type = bpy.types.Collection
+_class = BlCollection

multi_user/io_bpy/bl_material.py

@@ -502,3 +502,6 @@ class BlMaterial(ReplicatedDatablock):
             deps.extend(get_node_tree_dependencies(datablock.node_tree))
 
         return deps
+
+_type = bpy.types.Material
+_class = BlMaterial

multi_user/io_bpy/bl_mesh.py

@@ -200,3 +200,6 @@ class BlMesh(ReplicatedDatablock):
             return False
         else:
             return super().diff()
+
+_type = bpy.types.Mesh
+_class = BlMesh

multi_user/io_bpy/bl_scene.py

@@ -567,3 +567,6 @@ class BlScene(ReplicatedDatablock):
             exclude_path.append("root['camera']")
 
         return DeepDiff(self.data, self._dump(datablock=self.datablock), exclude_paths=exclude_path)
+
+_type = bpy.types.Scene
+_class = BlScene