bpy.types.Mesh.vertex_groups = bpy.props.BoolProperty(name="Vertex groups", description="Include vertex groups and weights", default=False)
bpy.types.Mesh.max_groups_per_vertex = bpy.props.IntProperty(name="Max groups", description="Maximum amount of groups per vertex", min=1, max=4, default=2)
bpy.types.Mesh.use_uv = bpy.props.EnumProperty(name="Use UV", description="Use UV coordinates", default="UNIT0",
bpy.types.Mesh.vertex_groups = bpy.props.BoolProperty(name="Vertex groups", description="Include vertex groups and weights", default=False)
bpy.types.Mesh.max_groups_per_vertex = bpy.props.IntProperty(name="Max groups", description="Maximum amount of groups per vertex", min=1, max=4, default=2)
bpy.types.Mesh.use_uv = bpy.props.EnumProperty(name="Use UV", description="Use UV coordinates", default="UNIT0",