def addCircleAnnot(self, rect):
CheckParent(self)<EOL>val = _fitz.Page_addCircleAnnot(self, rect)<EOL>if not val: return<EOL>val.thisown = True<EOL>val.parent = weakref.proxy(self)<EOL>self._annot_refs[id(val)] = val<EOL>return val<EOL>
Add a 'Circle' annotation.