code: def deleteAnnot(self, fannot):
          
          CheckParent(self)
  
          val = _fitz.Page_deleteAnnot(self, fannot)
          if val:
              val.thisown = True
              val.parent = weakref.proxy(self) # owning page object
              val.parent._annot_refs[id(val)] = val
          fannot._erase()
  
  
          return val
docs: Delete annot if PDF and return next one