Fixed an issue related to import error of and classes when importing through other module like mypy (#1764)

Author: pranavrth

CHANGELOG.md

@@ -6,6 +6,7 @@ v2.4.1 is a maintenance release with the following fixes and enhancements:
 
  - Removed usage of `strcpy` to enhance security of the client (#1745)
  - Fixed invalid write in `OAUTHBEARER/OIDC` extensions copy (#1745)
+ - Fixed an issue related to import error of `TopicCollection` and `TopicPartitionInfo` classes when importing through other module like mypy.
 
 confluent-kafka-python is based on librdkafka v2.4.1, see the
 [librdkafka release notes](https://github.com/confluentinc/librdkafka/releases/tag/v2.4.1)

src/confluent_kafka/__init__.py

@@ -49,7 +49,7 @@
            'SerializingProducer', 'TIMESTAMP_CREATE_TIME', 'TIMESTAMP_LOG_APPEND_TIME',
            'TIMESTAMP_NOT_AVAILABLE', 'TopicPartition', 'Node',
            'ConsumerGroupTopicPartitions', 'ConsumerGroupState', 'Uuid',
-           'IsolationLevel']
+           'IsolationLevel', 'TopicCollection', 'TopicPartitionInfo']
 
 __version__ = version()[0]