@Override
    public StreamEvent find(StateEvent matchingEvent, Object storeEvents, StreamEventCloner storeEventCloner) {
        return super.find(matchingEvent, ((Map<Object, StreamEvent>) storeEvents).values(), storeEventCloner);
    }
Operator which is related to non-indexed In-memory table operations.
modules/siddhi-core/src/main/java/io/siddhi/core/util/collection/operator/MapOperator.java