infrastructure-resource-cleanup-unclosed-client-session-and-connector-errors-when--35336db3

THEN Implement a try...finally pattern to ensure the OpenSearch client is closed after use, and explicitly close the async client session. For synchronous contexts, close the client in a destructor or using a context manager. For async contexts, await client.close() to avoid resource leaks.

class OpensearchVectorClient:
    def __init__(self, endpoint, index, dim):
        self._os_client = OpenSearch(...)
    def close(self):
        self._os_client.close()
    def __del__(self):
        self.close()

# Usage with context manager
def use_client():
    client = OpensearchVectorClient(...)
    try:
        yield client
    finally:
        client.close()