Add size attribute to Image

implementation/image/openstack_image_manager.py

@@ -14,7 +14,8 @@ class OpenstackImageManager(ImageManager, OpenStackConnection):
         return Image(
             os_image.id,
             os_image.name,
-            os_image.disk_format
+            os_image.disk_format,
+            os_image.size
         )
 
     def upload_file(self, name, path, format) -> Image:

interface/image/image.py

@@ -2,12 +2,13 @@ import json
 
 
 class Image:
-    def __init__(self, id, name, format=None) -> None:
+    def __init__(self, id, name, file_format, size) -> None:
         super().__init__()
 
         self.id = id
         self.name = name
-        self.format = format
+        self.file_format = file_format
+        self.size = size
 
     def __str__(self) -> str:
         return self.toJSON()