This command is used to mute an user from the server. It does this by adding a specially preset mute role.
user - The user you want to mute
reason - The reason for the infraction. It will be shown in bot logs
--dm-user - Sends the reason for the warning to the user's DMs
--no-infraction - Does not log an infraction. Log entry is still sent
--purge-roles - This flag is used to remove every possible (counting hierarchy) role before muting.
m:mute <user> [reason]
This command's level is 50 by default. The bot needs Send Messages, Read Messages, Manage Roles permissions in order to be able to execute this command.