3j ddlmZddgZddlZddlZej dZd dZd dZ e dk(rddl Z e jyy) ) annotations wrapWeakref unwrapWeakrefN_TcP tj|S#t$r|cYSwxYw)a utility function that wraps objects as weakrefs but does not wrap already wrapped objects; also prevents wrapping the unwrappable "None" type, etc. >>> import weakref >>> class Mock: ... pass >>> a1 = Mock() >>> ref1 = common.wrapWeakref(a1) >>> ref1 >>> ref2 = common.wrapWeakref(ref1) >>> ref2 >>> ref3 = common.wrapWeakref(5) >>> ref3 5 OMIT_FROM_DOCS Note that the ...Mock was needed after Python 3.13. When 3.13 is the lowest version, replace ... with the actual output. )weakrefref TypeErrorreferents H/DATA/.local/lib/python3.12/site-packages/music21/common/weakrefTools.pyrrs,8{{8$$ s  %%cHt|tjr|S|S)a Utility function that gets an object that might be an object itself or a weak reference to an object. It returns obj() if it's a weakref. and obj if it's not. >>> class Mock: ... pass >>> a1 = Mock() >>> a2 = Mock() >>> a2.strong = a1 >>> a2.weak = common.wrapWeakref(a1) >>> common.unwrapWeakref(a2.strong) is a1 True >>> common.unwrapWeakref(a2.weak) is a1 True >>> common.unwrapWeakref(a2.strong) is common.unwrapWeakref(a2.weak) True ) isinstancer ReferenceTyper s r rr<s!&(G112z__main__)r rreturnzweakref.ReferenceType | _T)r zweakref.ReferenceType | t.Anyrzt.Any) __future__r__all__typingtrTypeVarrrr__name__music21mainTestrr rsT# / *QYYt_#L2 zGr