def set_committed_value(instance, key, value):
 (state, dict_) = (instance_state(instance), instance_dict(instance))
 state.manager[key].impl.set_committed_value(state, dict_, value)

def set_committed_value ( instance , key , value ) : ( state , dict_ ) = ( instance_state ( instance ) , instance_dict ( instance ) ) state . manager [ key ] . impl . set_committed_value ( state , dict_ , value )
set the value of an attribute with no history events .