fixing lint

exporter/opentelemetry-exporter-prometheus-remote-write/src/opentelemetry/exporter/prometheus_remote_write/__init__.py

@@ -16,9 +16,7 @@
 import logging
 from typing import Dict, Sequence
 
-from opentelemetry.sdk.metrics.export import (
-    MetricsExporter,
-)
+from opentelemetry.sdk.metrics.export import (MetricsExporter)
 
 logger = logging.getLogger(__name__)
 
@@ -70,9 +68,7 @@ def basic_auth(self):
     @basic_auth.setter
     def basic_auth(self, basic_auth: Dict):
         if hasattr(self, "bearer_token") or hasattr(self, "bearer_token_file"):
-            raise ValueError(
-                "cannot contain basic_auth and bearer_token"
-            )
+            raise ValueError("cannot contain basic_auth and bearer_token")
         if "username" not in basic_auth:
             raise ValueError("username required in basic_auth")
         if "password" not in basic_auth and "password_file" not in basic_auth:
@@ -90,9 +86,7 @@ def bearer_token(self):
     @bearer_token.setter
     def bearer_token(self, bearer_token: str):
         if hasattr(self, "basic_auth"):
-            raise ValueError(
-                "cannot contain basic_auth and bearer_token"
-            )
+            raise ValueError("cannot contain basic_auth and bearer_token")
         if hasattr(self, "bearer_token_file"):
             raise ValueError(
                 "cannot contain bearer_token and bearer_token_file"