lint fixes

Author: vgvoleg

examples/topic/basic_example.py

@@ -9,7 +9,7 @@ async def connect(endpoint: str, database: str) -> ydb.aio.Driver:
     config = ydb.DriverConfig(endpoint=endpoint, database=database)
     # config.credentials = ydb.credentials_from_env_variables()
     driver = ydb.aio.Driver(config)
-    await driver.wait(5,fail_fast=True)
+    await driver.wait(5, fail_fast=True)
     return driver
 
 
@@ -25,10 +25,7 @@ async def create_topic(driver: ydb.aio.Driver, topic: str, consumer: str):
 async def write_messages(driver: ydb.aio.Driver, topic: str):
     async with driver.topic_client.writer(topic) as writer:
         for i in range(10):
-            mess = ydb.TopicWriterMessage(
-                data = f"mess-{i}",
-                metadata_items= {"index": f"{i}"}
-            )
+            mess = ydb.TopicWriterMessage(data=f"mess-{i}", metadata_items={"index": f"{i}"})
             await writer.write(mess)
             await asyncio.sleep(1)