If the message could not be executed, get an error message to give the user.
If the message could not be executed, get an error message to give the user.
Check if the message can be executed.
Check if the message can be executed.
Check if a command can be used by a user.
Check if a command can be used by a user. While this is not used directly in AckCord, it can be used when implementing help commands and similar. If it's not possible to determine if the command can be used, then this method should be optimistic.
A command that can only be used in a single guild.