code: def getQCAnalyses(self):
          
          qc_types = ['ReferenceAnalysis', 'DuplicateAnalysis']
          analyses = self.getAnalyses()
          return [a for a in analyses if a.portal_type in qc_types]
docs: Return the Quality Control analyses.
          :returns: a list of QC analyses
          :rtype: List of ReferenceAnalysis/DuplicateAnalysis