fix: fix as_dataframe (#91)

monitoring/snippets/v3/cloud-client/snippets.py

@@ -18,8 +18,8 @@
 import time
 import uuid
 
-from google.api import metric_pb2 as ga_metric
 from google.api import label_pb2 as ga_label
+from google.api import metric_pb2 as ga_metric
 from google.cloud import monitoring_v3
 
 
@@ -35,13 +35,13 @@ def create_metric_descriptor(project_id):
     descriptor.metric_kind = ga_metric.MetricDescriptor.MetricKind.GAUGE
     descriptor.value_type = ga_metric.MetricDescriptor.ValueType.DOUBLE
     descriptor.description = "This is a simple example of a custom metric."
-    
+
     labels = ga_label.LabelDescriptor()
     labels.key = "TestLabel"
     labels.value_type = ga_label.LabelDescriptor.ValueType.STRING
     labels.description = "This is a test label"
     descriptor.labels.append(labels)
-    
+
     descriptor = client.create_metric_descriptor(
         name=project_name, metric_descriptor=descriptor
     )