Fix formatting (#174)

Author: jtpio

jupyter_resource_usage/api.py

@@ -99,7 +99,6 @@ def get_cpu_percent(p):
 class KernelUsageHandler(APIHandler):
     @web.authenticated
     async def get(self, matched_part=None, *args, **kwargs):
-
         if not USAGE_IS_SUPPORTED:
             self.write(json.dumps({}))
             return

jupyter_resource_usage/metrics.py

@@ -63,7 +63,6 @@ def get_metric_values(self, metrics, metric_type):
         return metric_values
 
     def metrics(self, process_metrics, system_metrics):
-
         metric_values = self.get_metric_values(process_metrics, "process")
         metric_values.update(self.get_metric_values(system_metrics, "system"))
 

jupyter_resource_usage/tests/test_basic.py

@@ -37,7 +37,6 @@ def test_import_serverextension(self):
         ) as prometheus_handler_mock, patch(
             "jupyter_resource_usage.server_extension.PSUtilMetricsLoader"
         ) as psutil_metrics_loader:
-
             # load up with mock
             load_jupyter_server_extension(nbapp_mock)