public GetSparqlStreamResult clearLastEventIdEntries() {
        this.lastEventId = null;
        return this;
    }
Removes all the entries added into LastEventId.

@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-neptunedata/src/main/java/com/amazonaws/services/neptunedata/model/GetSparqlStreamResult.java