Start capture on the link

        :returns: Capture object

def start_capture(self, data_link_type="DLT_EN10MB", capture_file_name=None):
        """
        Start capture on the link

        :returns: Capture object
        """

        self._capturing = True
        self._capture_file_name = capture_file_name
        self._streaming_pcap = asyncio.async(self._start_streaming_pcap())
        self._project.controller.notification.emit("link.updated", self.__json__())