preCallHooks property

An iterable of callbacks executed before a command is executed but after all the checks for that command have succeeded.

These callbacks should be used to update this check's state.

You might also be interested in:

• CallHooked.onPreCall, for registering arbitrary callbacks to be executed before a command is executed but after all checks have succeeded;
• CommandsPlugin.onCommandError, where a CheckFailedException is added when a check for a command fails.