def _UnplaceObsoleteSigns(kept_signs, placed_signs):
    for sign in placed_signs:
        if sign not in kept_signs:
            vimsupport.UnplaceSignInBuffer(sign.buffer, sign.id)
 def _UnplaceObsoleteSigns(self, obsolete_signs):
     for sign in obsolete_signs:
         self._placed_signs.remove(sign)
         vimsupport.UnplaceSignInBuffer(self._bufnr, sign.id)