make workflow_id optional

Author: andrii-i

jupyter_scheduler/models.py

@@ -87,7 +87,7 @@ class CreateJob(BaseModel):
     compute_type: Optional[str] = None
     package_input_folder: Optional[bool] = None
     depends_on: Optional[List[str]] = None
-    workflow_id: str = None
+    workflow_id: Optional[str] = None
 
     @root_validator
     def compute_input_filename(cls, values) -> Dict:
@@ -151,7 +151,7 @@ class DescribeJob(BaseModel):
     package_input_folder: Optional[bool] = None
     packaged_files: Optional[List[str]] = []
     depends_on: Optional[List[str]] = None
-    workflow_id: str = None
+    workflow_id: Optional[str] = None
 
     class Config:
         orm_mode = True