docs: def removeAnnotation(self, specfiles=None):
          """Remove all annotation information from :class:`Fi` elements.
  
          :param specfiles: the name of an ms-run file or a list of names. If None
              all specfiles are selected.
          :type specfiles: None, str, [str, str]
          """
          if specfiles is None:
              specfiles = [_ for _ in viewkeys(self.info)]
          else:
              specfiles = aux.toList(specfiles)
  
          for specfile in aux.toList(specfiles):
              for item in viewvalues(self.container[specfile]):
                  item.isMatched = False
                  item.isAnnotated = False
                  item.siIds = list()
                  item.siiIds = list()
                  item.peptide = None
                  item.sequence = None
                  item.bestScore = None