public GetPlaybackKeyPairRequest withArn(String arn) {
        setArn(arn);
        return this;
    }
<p>
ARN of the key pair to be returned.
</p>

@param arn
       ARN of the key pair to be returned.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-ivs/src/main/java/com/amazonaws/services/ivs/model/GetPlaybackKeyPairRequest.java