Method contains

Telegram/SourceFiles/boxes/connection_box.cpp:2262–2268

}

bool ProxiesBoxController::contains(const ProxyData &proxy) const {
	const auto j = ranges::find(
		_list,
		proxy,
		[](const Item &item) { return item.data; });
	return (j != end(_list));
}

void ProxiesBoxController::addNewItem(const ProxyData &proxy) {
	_settings.addToList(proxy);