public CreateCampaignRequest withSignalsToCollect(SignalInformation... signalsToCollect) {
        if (this.signalsToCollect == null) {
            setSignalsToCollect(new java.util.ArrayList<SignalInformation>(signalsToCollect.length));
        }
        for (SignalInformation ele : signalsToCollect) {
            this.signalsToCollect.add(ele);
        }
        return this;
    }
<p>
(Optional) A list of information about signals to collect.
</p>
<p>
<b>NOTE:</b> This method appends the values to the existing list (if any). Use
{@link #setSignalsToCollect(java.util.Collection)} or {@link #withSignalsToCollect(java.util.Collection)} if you
want to override the existing values.
</p>

@param signalsToCollect
       (Optional) A list of information about signals to collect.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-iotfleetwise/src/main/java/com/amazonaws/services/iotfleetwise/model/CreateCampaignRequest.java