Summary

When using RTMClient#typing(), the typing indicator was not being sent immediately because the function was not asynchronous. This caused the erroneous behavior described in #415. In order to immediately send any data over the websocket with aiohttp we must use an async function.

This PR changes both #typing() and #ping() functions on the RTMClient class into async functions.

Here's an example of what this would look like implemented:

@slack.RTMClient.run_on(event="open")
async def typing_message(**payload):
    rtm_client = payload["rtm_client"]
    await rtm_client.typing(channel="C01234567")

It's a minor but still backwards-incompatible change.

Requirements

• I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.