бэк несколько медиа

src/domain/__init__.py

@@ -21,9 +21,12 @@ __all__ = (
     'PlacementType',
     'PlacementPost',
     'Creative',
+    'CreativeMedia',
     'replace_invite_link_with_tag',
     'validate_media_size',
+    'validate_media_items',
     'MAX_CREATIVE_MEDIA_BYTES',
+    'MAX_CREATIVE_MEDIA_ITEMS',
     'validate_workspace_avatar_size',
     'MAX_WORKSPACE_AVATAR_BYTES',
     'Post',
@@ -61,15 +64,20 @@ __all__ = (
     'CreativeInviteLinkNotFound',
     'CreativeMultipleInviteLinks',
     'CreativeMediaTooLarge',
+    'CreativeMediaTooMany',
+    'CreativeMediaGroupUnsupported',
     'UserByUsernameNotFound',
 )
 
 from .channel import Channel
 from .creative import (
     MAX_CREATIVE_MEDIA_BYTES,
+    MAX_CREATIVE_MEDIA_ITEMS,
     Creative,
+    CreativeMedia,
     CreativeStatus,
     replace_invite_link_with_tag,
+    validate_media_items,
     validate_media_size,
 )
 from .error import (
@@ -78,7 +86,9 @@ from .error import (
     ChannelNotFound,
     CreativeInUse,
     CreativeInviteLinkNotFound,
+    CreativeMediaGroupUnsupported,
     CreativeMediaTooLarge,
+    CreativeMediaTooMany,
     CreativeMultipleInviteLinks,
     CreativeNotFound,
     LoginTokenAlreadyUsed,