public void setChannelArn(String channelArn) {
        this.channelArn = channelArn;
    }
<p>
The ARN of the channel.
</p>

@param channelArn
       The ARN of the channel.
aws-java-sdk-chimesdkmessaging/src/main/java/com/amazonaws/services/chimesdkmessaging/model/PutChannelMembershipPreferencesResult.java