public void setEntities(java.util.Collection<Entity> entities) {
        if (entities == null) {
            this.entities = null;
            return;
        }

        this.entities = new java.util.ArrayList<Entity>(entities);
    }
<p>
The entity type (associated with the detector's event type) and specific entity ID representing who performed the
event. If an entity id is not available, use "UNKNOWN."
</p>

@param entities
       The entity type (associated with the detector's event type) and specific entity ID representing who
       performed the event. If an entity id is not available, use "UNKNOWN."
aws-java-sdk-frauddetector/src/main/java/com/amazonaws/services/frauddetector/model/GetEventPredictionRequest.java