send(buf) {
		//this.logger.info("Buffer\n" + buf.toString());
		const sock = dgram.createSocket("udp4");
		sock.send(buf, 0, buf.length, this.opts.port, this.opts.host, (err, bytes) => {
			if (err) {
				this.logger.warn(
					"Unable to send metrics to StatsD server. Error:" + err.message,
					err
				);
			} else {
				this.logger.debug("Metrics are uploaded to StatsD. Sent bytes:", bytes);
			}

			sock.close();
		});
	}
Send concatenated data to StatsD server via UDP

@param {Buffer} buf