Network::instanceHttpClient

static function instanceHttpClient(): ImBotHttp
{
	if (!(self::$httpClient instanceof ImBotHttp))
	{
		$botCode = self::BOT_CODE;
		if (self::BOT_CODE != static::BOT_CODE)
		{
			$botCode .= '.'. static::BOT_CODE; //network.support
		}

		self::$httpClient = new ImBotHttp($botCode);
	}

	return self::$httpClient;
}