Cannot clear "all" caches

I am on the latest Poetry version.
I have searched the issues of this repo and believe that this is not a duplicate.
If an exception occurs when executing a command, I executed it again in debug mode (-vvv option).

Issue

poetry cache clear --all still expects a cache name (and there seems to be no commands for listing cache names).

$ poetry cache clear --all

[CannotParseArgsException]
Not enough arguments (missing: "cache").

Judging from this comment, there is a cache named pypi that has to be given. Perhaps the help message could be improved instead?

Add cache list command

Clarify documentation for `--all` option in `cache clear` command

Add cache list command

Is it possible to explain to people using a code example ??
for example:
poetry cache clear PyPi --all
Delete 86 entries? (yes/no) [yes] yes
yes.

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.