parameters: (self, clear=False, verify_is_copy=True)
docstring: See if we need to update our parent cacher if clear, then clear our
          cache.
  
          Parameters
          ----------
          clear : boolean, default False
              clear the item cache
          verify_is_copy : boolean, default True
              provide is_copy checks
docstring_summary: See if we need to update our parent cacher if clear, then clear our
          cache.
docstring_tokens: See if we need to update our parent cacher if clear then clear our cache .
function: def _maybe_update_cacher(self, clear=False, verify_is_copy=True):
          """
          See if we need to update our parent cacher if clear, then clear our
          cache.
  
          Parameters
          ----------
          clear : boolean, default False
              clear the item cache
          verify_is_copy : boolean, default True
              provide is_copy checks
  
          """
  
          cacher = getattr(self, '_cacher', None)
          if cacher is not None:
              ref = cacher[1]()
  
              # we are trying to reference a dead referant, hence
              # a copy
              if ref is None:
                  del self._cacher
              else:
                  try:
                      ref._maybe_cache_changed(cacher[0], self)
                  except Exception:
                      pass
  
          if verify_is_copy:
              self._check_setitem_copy(stacklevel=5, t='referant')
  
          if clear:
              self._clear_item_cache()
function_tokens: def _maybe_update_cacher ( self , clear = False , verify_is_copy = True ) : cacher = getattr ( self , '_cacher' , None ) if cacher is not None : ref = cacher [ 1 ] ( ) # we are trying to reference a dead referant, hence # a copy if ref is None : del self . _cacher else : try : ref . _maybe_cache_changed ( cacher [ 0 ] , self ) except Exception : pass if verify_is_copy : self . _check_setitem_copy ( stacklevel = 5 , t = 'referant' ) if clear : self . _clear_item_cache ( )