pub fn (mut self Actor) user_displayname(user_id string, displayname string) ?string {

pub fn (mut self Actor) user_displayname(user_id string, displayname string) ?bool {

	params, status := self.call(http.Method.put, url, name_data.str()) ?
	println('user_displayname status $status $params')
	return ''

	_, status := self.call(http.Method.put, url, name_data.str()) ?
	return status == 200

						self.chat.say(system, '', network, room_id, 'updated preferred irc nick for $name from $alias.irc to $nick')

						self.chat.say(system, '', network, room_id, 'updated preferred irc nick for $name from $alias.irc to $nick')

				self.matrix.user_displayname(matrix_id, name) or { println("ignoring user_displayname error for $matrix_id to $name") }

				self.matrix.user_displayname(matrix_id, name) or {
					println('ignoring user_displayname error for $matrix_id to $name')
				}