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
docs/conf.py
'grpc',
    'hdfs',
    'httplib2',
    'jaydebeapi',
    'jenkins',
    'jira',
    'kubernetes',
    'msrestazure',
    'pandas',
    'pandas_gbq',
    'paramiko',
    'pinotdb',
    'psycopg2',
    'pydruid',
    'pyhive',
    'pyhive',
    'pymongo',
    'pymssql',
    'pysftp',
    'qds_sdk',
    'redis',
    'simple_salesforce',
    'slackclient',
    'smbclient',
    'snowflake',
    'sshtunnel',
    'telegram',
    'tenacity',
    'vertica_python',
    'winrm',