Update branch + fix regarding `update_proposal` operation

beembase/objects.py

@@ -8,7 +8,7 @@ from beemgraphenebase.types import (
     Uint8, Int16, Uint16, Uint32, Uint64,
     Varint32, Int64, String, Bytes, Void,
     Array, PointInTime, Signature, Bool,
-    Set, Fixed_array, Optional, Static_variant,
+    Set, Fixed_array, Optional, Static_variant, Static_variantV2,
     Map, Id
 )
 from beemgraphenebase.objects import GrapheneObject, isArgsThisClass
@@ -327,45 +327,46 @@ class CommentOptionExtensions(Static_variant):
 
 
 class UpdateProposalEndDate(GrapheneObject):
-    def __init__(self, *args, **kwargs):
-        if isArgsThisClass(self, args):
-            self.data = args[0].data
+    """ Serialize date in Update proposal extensions.
+    """
+    def __init__(self, o):
+        if isinstance(o, dict) and 'end_date' in o:
+          _end_date = o['end_date']
         else:
-            if len(args) == 1 and len(kwargs) == 0:
-                kwargs = args[0]
-
-            super(UpdateProposalEndDate, self).__init__(
-                OrderedDict([
-                    ('end_date', PointInTime(kwargs['update_proposal_end_date'])),
-                ]))
-
+            raise Exception("Unknown date in UpdateProposalEndDate")
+        super(UpdateProposalEndDate, self).__init__(
+            OrderedDict([
+                ('end_date', PointInTime(_end_date))
+            ]))
 
-class UpdateProposalExtensions(Static_variant):
+class UpdateProposalExtensions(Static_variantV2):
     """ Serialize Update proposal extensions.
 
         :param end_date: A static_variant containing the new end_date.
 
         Example::
 
-            [1,
-                {'end_date': '2021-03-28T04:00:00'}
-            ]
+            {
+                'type': 'update_proposal_end_date',
+                'value':
+                      {
+                        'end_date': '2021-04-05T13:39:48'
+                      }
+            }
 
     """
     def __init__(self, o):
-        if type(o) == dict and 'type' in o and 'value' in o:
-            if o['type'] == "end_date":
-                type_id = 1
-            else:
-                type_id = ~0
-            data = o['value']
-        else:
-            type_id, data = o
+        if isinstance(o, dict) and 'type' in o and 'value' in o:
+          if o['type'] == "update_proposal_end_date":
+              type_id = 1
+          else:
+              type_id = ~0
 
         if type_id == 1:
-            data = (UpdateProposalEndDate(data))
+          data = UpdateProposalEndDate(o['value'])
         else:
-            raise Exception("Unknown UpdateProposalExtension")
+          raise Exception("Unknown UpdateProposalExtension")
         super(UpdateProposalExtensions, self).__init__(data, type_id)
 
 
+