Adding option to merge all inputs at once (#282)

src/pytypes/onefuzztypes/enums.py

@@ -74,6 +74,7 @@ class TaskFeature(Enum):
     check_debugger = "check_debugger"
     check_retry_count = "check_retry_count"
     ensemble_sync_delay = "ensemble_sync_delay"
+    preserve_existing_outputs = "preserve_existing_outputs"
 
 
 # Permissions for an Azure Blob Storage Container.

src/pytypes/onefuzztypes/models.py

@@ -133,6 +133,7 @@ class TaskDetails(BaseModel):
     reboot_after_setup: Optional[bool]
     target_timeout: Optional[int]
     ensemble_sync_delay: Optional[int]
+    preserve_existing_outputs: Optional[bool]
 
     @validator("check_retry_count", allow_reuse=True)
     def validate_check_retry_count(cls, value: int) -> int: