code: def filter_gaussian(self,sigmaMs=100,applyFiltered=False,applyBaseline=False):
          
          if sigmaMs==0:
              return self.dataY
          filtered=cm.filter_gaussian(self.dataY,sigmaMs)
          if applyBaseline:
              self.dataY=self.dataY-filtered
          elif applyFiltered:
              self.dataY=filtered
          else:
              return filtered
docs: RETURNS filtered trace. Desn't filter it in place.