test_async.py

import asyncio
from opensearchpy import AsyncOpenSearch, AsyncHttpConnection

async def main():
  client = AsyncOpenSearch(
      hosts = [{'host': 'localhost', 'port': 9200}],
      http_auth = ("admin", "admin"),
      use_ssl = True,
      verify_certs = False,
      ssl_show_warn=False,
      connection_class = AsyncHttpConnection
  )
  print(f"{id(client)} {await client.info()}")
  await client.close()

asyncio.run(main())