public ClusterOperationV2Provisioned withOperationSteps(ClusterOperationStep... operationSteps) {
        if (this.operationSteps == null) {
            setOperationSteps(new java.util.ArrayList<ClusterOperationStep>(operationSteps.length));
        }
        for (ClusterOperationStep ele : operationSteps) {
            this.operationSteps.add(ele);
        }
        return this;
    }
<p>
Steps completed during the operation.
</p>
<p>
<b>NOTE:</b> This method appends the values to the existing list (if any). Use
{@link #setOperationSteps(java.util.Collection)} or {@link #withOperationSteps(java.util.Collection)} if you want
to override the existing values.
</p>

@param operationSteps
       <p>
       Steps completed during the operation.
       </p>
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-kafka/src/main/java/com/amazonaws/services/kafka/model/ClusterOperationV2Provisioned.java