def object_session(instance):

    try:
        return _state_session(attributes.instance_state(instance))
    except exc.NO_STATE:
        raise exc.UnmappedInstanceError(instance)
Returns whether this reader returns windowed values.
dataset/ETHPy150Open goFrendiAsgard/kokoropy/kokoropy/packages/sqlalchemy/orm/session.py/object_session--crossover with--dataset/ETHPy150Open GoogleCloudPlatform/DataflowPythonSDK/google/cloud/dataflow/worker/windmillio.py/PubSubWindmillReader.returns_windowed_values