def parseruninfo(self):
        """Extracts the flowcell ID, as well as the instrument name from RunInfo.xml. If this file is not provided,
        NA values are substituted"""
        # Check if the RunInfo.xml file is provided, otherwise, yield N/A
        try:
            runinfo = ElementTree.ElementTree(file=self.runinfo)
            # Get the run id from the
            for elem in runinfo.iter():
                for run in elem:
                    try:
                        self.runid = run.attrib['Id']
                        self.runnumber = run.attrib['Number']
                    except KeyError:
                        break
            # pull the text from flowcell and instrument values using the .iter(tag="X") function
            for elem in runinfo.iter(tag="Flowcell"):
                self.flowcell = elem.text
            for elem in runinfo.iter(tag="Instrument"):
                self.instrument = elem.text
        except IOError:
            pass
        # Extract run statistics from either GenerateRunStatistics.xml or indexingQC.txt
        self.parserunstats()
Extracts the flowcell ID, as well as the instrument name from RunInfo.xml. If this file is not provided,
        NA values are substituted