Sends key/value pairs via UDP.

        >>> StatsdClient.send({"example.send":"11|c"}, ("127.0.0.1", 8125))

def send(_dict, addr):
        """
        Sends key/value pairs via UDP.

        >>> StatsdClient.send({"example.send":"11|c"}, ("127.0.0.1", 8125))
        """
        # TODO(rbtz@): IPv6 support
        udp_sock = socket(AF_INET, SOCK_DGRAM)
        # TODO(rbtz@): Add batch support
        for item in _dict.items():
            udp_sock.sendto(":".join(item).encode('utf-8'), addr)