fixup! Issue #332 introduce support for job listing pagination

openeo_driver/backend.py

@@ -392,7 +392,7 @@ class JobListing:
     # TODO: just implement as frozen dataclass, or does that conflict with later need to subclass?
     __slots__ = ["_jobs", "_next_parameters"]
 
-    def __init__(self, jobs: List[BatchJobMetadata], next_parameters: Optional[dict]):
+    def __init__(self, jobs: List[BatchJobMetadata], next_parameters: Optional[dict] = None):
         self._jobs = jobs
         self._next_parameters = next_parameters
 
@@ -446,6 +446,7 @@ def get_user_jobs(
         user_id: str,
         limit: Optional[int] = None,
         request_parameters: Optional[werkzeug.datastructures.MultiDict] = None,
+        # TODO #332 settle on returning just `JobListing` and eliminate other options/code paths.
     ) -> Union[List[BatchJobMetadata], dict, JobListing]:
         """
         Get details about all batch jobs of a user