Hello,

Slack has released updates to its library and we can start using it for it. 

We especially like one change.

> slack_sdk has no required dependencies. This means aiohttp is no longer automatically resolved.

I've looked through the documentation and it doesn't look like a difficult task, but I think it's still worth testing.
More info: https://slack.dev/python-slack-sdk/v3-migration/index.html#from-slackclient-2-x

Best regards,
Kamil Breguła
setup.py
'qds-sdk>=1.9.6',
    'requests_mock',
    'testfixtures',
    'wheel',
    'yamllint',
]
devel_minreq = cgroups + devel + doc + kubernetes + mysql + password
devel_hadoop = devel_minreq + hdfs + hive + kerberos + presto + webhdfs
PROVIDERS_REQUIREMENTS: Dict[str, List[str]] = {
    'amazon': amazon,
    'apache.cassandra': cassandra,
    'apache.druid': druid,
    'apache.hdfs': hdfs,
    'apache.hive': hive,
    'apache.kylin': kylin,
    'apache.livy': [],
    'apache.pig': [],
    'apache.pinot': pinot,
    'apache.spark': spark,
    'apache.sqoop': [],
    'celery': celery,
    'cloudant': cloudant,
    'cncf.kubernetes': kubernetes,
    'databricks': databricks,
    'datadog': datadog,
    'dingding': [],
    'discord': [],
    'docker': docker,
    'elasticsearch': elasticsearch,
    'exasol': exasol,