I don't know if that's what you expect:

eg: !op <nickname>

Code
on @:text:*:#:{
	tokenize 32 $strip($1-)
	if ($2 ison #) {
		if ($1 == !o) { mode # +o $2 }
		if ($1 == !deop) { mode # -o $2 }
		if ($1 == !v) { mode # +v $2 }
		if ($1 == !dv) { mode # -v $2 }
	}
}

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