diff --git a/target_bigquery/sinks.py b/target_bigquery/sinks.py
index e6bb367..683481a 100644
--- a/target_bigquery/sinks.py
+++ b/target_bigquery/sinks.py
@@ -28,7 +28,6 @@
 PARTITIONS = "partitions"
 
 
-
 class BigQuerySink(BatchSink):
     """BigQuery target sink class."""
 
@@ -357,14 +356,18 @@ def transform_record(record):
 
         with open(temp_file, "wb") as tempfile:
             elapsed_time = stop_timer(start)
-            self.logger.info(f"[{self.stream_name}][{batch_id}] open(temp_file) wb... elapsed time: {elapsed_time} ms")
+            self.logger.info(
+                f"[{self.stream_name}][{batch_id}] open(temp_file) wb... elapsed time: {elapsed_time} ms"
+            )
             writer(tempfile, self.parsed_schema, avro_records)
 
         self.logger.info(f"[{self.stream_name}][{batch_id}] Uploading LoadJob...")
 
         with open(temp_file, "r+b") as tempfile:
             elapsed_time = stop_timer(start)
-            self.logger.info(f"[{self.stream_name}][{batch_id}] open(temp_file) r+b... elapsed time: {elapsed_time} ms")
+            self.logger.info(
+                f"[{self.stream_name}][{batch_id}] open(temp_file) r+b... elapsed time: {elapsed_time} ms"
+            )
             load_job = self.load_table_from_file(tempfile, batch_id)
 
         # Delete temp file once we are done with it
@@ -384,22 +387,28 @@ def transform_record(record):
 
         # Await job to finish
         elapsed_time = stop_timer(start)
-        self.logger.info(f"[{self.stream_name}][{batch_id}] before load_job.result() - time - {elapsed_time} ms")
+        self.logger.info(
+            f"[{self.stream_name}][{batch_id}] before load_job.result() - time - {elapsed_time} ms"
+        )
         load_job.result()
         elapsed_time = stop_timer(start)
 
-        self.logger.info(f"[{self.stream_name}][{batch_id}] after load_job.result() - time - {elapsed_time} ms")
+        self.logger.info(
+            f"[{self.stream_name}][{batch_id}] after load_job.result() - time - {elapsed_time} ms"
+        )
 
         queries.append(self.update_from_temp_table(batch_id, batch_meta))
         queries.append(self.drop_temp_table(batch_id))
 
-        self.logger.info(f"[{self.stream_name}][{batch_id}] before query - time - {elapsed_time} ms")
+        self.logger.info(
+            f"[{self.stream_name}][{batch_id}] before query - time - {elapsed_time} ms"
+        )
 
         self.query(queries)
 
-        self.logger.info(f"[{self.stream_name}][{batch_id}] after query - time - {elapsed_time} ms")
-
-        self.logger.info(f"[{self.stream_name}][{batch_id}] Finished batch")
+        self.logger.info(
+            f"[{self.stream_name}][{batch_id}] Finished batch - time - {elapsed_time} ms"
+        )
 
     def process_batch_files(
         self,
@@ -439,8 +448,10 @@ def process_batch_files(
                     f"Unsupported batch encoding format: {encoding.format}"
                 )
 
+
 def start_timer():
     return time.time()
 
+
 def stop_timer(start_time):
-    return (time.time() - start_time) * 1000
\ No newline at end of file
+    return (time.time() - start_time) * 1000