@gdZddlmZddlmZddlmZddlmZddlmZddlmZddlm Z d d l m Z d d l m Z d d l mZd d l mZerddlmZddlmZddlmZe deZeefZ Gdde jZeZGdde jZGdde jZGdde jZGdde jZ GddeZ!Gd d!eZ"Gd"d#e jZ#Gd$d%e jZ$Gd&d'e jZ%d1d,Z&e j'd-d2d/Z(d0S)3zSQLAlchemy ORM exceptions.) annotations)Any)Optional)Tuple)Type) TYPE_CHECKING)TypeVar)exc)util)MultipleResultsFound) NoResultFound)LoaderStrategy)MapperProperty) InstanceState_T)boundceZdZdZdS)StaleDataErroraaAn operation encountered database state that is unaccounted for. Conditions which cause this to happen include: * A flush may have attempted to update or delete rows and an unexpected number of rows were matched during the UPDATE or DELETE statement. 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