U cc@ @spddlmZddlZddlZddlZddlZddlm Z ej rJddl m Z Gdddej jZdd d d ZdS) ) annotationsN)app_ctx) SQLAlchemycsFeZdZdZddddfdd Zdd d d dd d fd d ZZS)SessionaA SQLAlchemy :class:`~sqlalchemy.orm.Session` class that chooses what engine to use based on the bind key associated with the metadata associated with the thing being queried. To customize ``db.session``, subclass this and pass it as the ``class_`` key in the ``session_options`` to :class:`.SQLAlchemy`. .. versionchanged:: 3.0 Renamed from ``SignallingSession``. rzt.AnyNone)dbkwargsreturnc stjf|||_i|_dS)N)super__init___dbZ_model_changes)selfrr  __class__s   A