Documentation of ping() is not clear

[codebude]

The issue refers to: https://redis-py.readthedocs.io/en/stable/commands.html#redis.commands.core.CoreCommands.ping

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The documentation of the ping() method is unclear or confusing. According to the documentation, the return value is:

Union[Awaitable, Any]

In practice, however, the callback logic always returns a bool by default. See:

• https://github.com/redis/redis-py/blob/64f291f7797b5b3e5652da8941947b8c2db517e9/redis/_parsers/helpers.py#L734

I suggest changing the return-type in the documentation to:

Union[Awaitable, bool]

It would also be helpful if the mode of operation were also mentioned in the description. Because the current text only refers to the redis.io PING documentation, which says that the return value is a string with the value “PONG”:

Ping the Redis server

For more information see https://redis.io/commands/ping

I would suggest something like:

Ping the Redis server

Send PING¹ command to server and returns boolean True if the server's response equals "PONG"².

¹For more information on the underlying ping command see https://redis.io/commands/ping
²This default behaviour can be overwritten by setting a custom callback.