println('user_display_name $params')
	return ''

	displayname := params['displayname'].str()
	return displayname

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

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

				// check matrix registration
				display_name := self.matrix.user_display_name(name) or {
					matrix_user := matrix.split(name)[1]
					irc_nick := regex_self_replace(self.config.irc_regex, matrix_user)
					irc_nick
				}

				matrix_user := matrix.split(name)[1]
				irc_nick := regex_self_replace(self.config.irc_regex, matrix_user)

					irc: display_name

					irc: irc_nick