Добавлен .pack() в ButtonsPayload для удобства

maxapi/types/attachments/attachment.py

@@ -83,6 +83,12 @@ class ButtonsPayload(BaseModel):
     
     buttons: List[List[InlineButtonUnion]]
     
+    def pack(self):
+        return Attachment(
+            type=AttachmentType.INLINE_KEYBOARD,
+            payload=self
+        )
+
 
 class Attachment(BaseModel):