public void setTwoWayChannelRole(String twoWayChannelRole) {
        this.twoWayChannelRole = twoWayChannelRole;
    }
<p>
An optional IAM Role Arn for a service to assume, to be able to post inbound SMS messages.
</p>

@param twoWayChannelRole
       An optional IAM Role Arn for a service to assume, to be able to post inbound SMS messages.
aws-java-sdk-pinpointsmsvoicev2/src/main/java/com/amazonaws/services/pinpointsmsvoicev2/model/DeletePoolResult.java