public OpsItemEventSummary withCreatedBy(OpsItemIdentity createdBy) {
        setCreatedBy(createdBy);
        return this;
    }
<p>
Information about the user or resource that created the OpsItem event.
</p>

@param createdBy
       Information about the user or resource that created the OpsItem event.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-ssm/src/main/java/com/amazonaws/services/simplesystemsmanagement/model/OpsItemEventSummary.java