public RedactChannelMessageResult withChannelArn(String channelArn) {
        setChannelArn(channelArn);
        return this;
    }
<p>
The ARN of the channel containing the messages that you want to redact.
</p>

@param channelArn
       The ARN of the channel containing the messages that you want to redact.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-chimesdkmessaging/src/main/java/com/amazonaws/services/chimesdkmessaging/model/RedactChannelMessageResult.java