Update subscribe_opentelemetry.py

Author: abbrowne126

google/cloud/pubsub_v1/open_telemetry/subscribe_opentelemetry.py

@@ -168,9 +168,9 @@ def start_process_span(self) -> trace.Span:
             publish_create_span: trace.Span = trace.get_current_span(
                 self._publisher_create_span_context
             )
-            span_context: Optional[
-                trace.SpanContext
-            ] = publish_create_span.get_span_context()
+            span_context: Optional[trace.SpanContext] = (
+                publish_create_span.get_span_context()
+            )
             publish_create_span_link = (
                 trace.Link(span_context) if span_context else None
             )
@@ -208,6 +208,7 @@ def __exit__(self, exc_type, exc_val, traceback):
         if self._process_span:
             self.end_process_span()
 
+
 def start_modack_span(
     subscribe_span_links: List[trace.Link],
     subscription_id: Optional[str],