MODES
Indicates how many “variable” modes may be set on a channel by a single "MODE" command from a client. A “variable” mode is defined as being a "type A/B/C" mode as defined in the "CHANMODES" token. The value is optional and when not specified indicates that there is NO limit places on “variable” modes.
Format: MODES=\[number]
Examples:
MODES
MODES=3