public void setManifestName(String manifestName) {
        this.manifestName = manifestName;
    }
An optional short string appended to the end of the OriginEndpoint URL. If not specified, defaults to the
manifestName for the OriginEndpoint.

@param manifestName
       An optional short string appended to the end of the OriginEndpoint URL. If not specified, defaults to the
       manifestName for the OriginEndpoint.
aws-java-sdk-mediapackage/src/main/java/com/amazonaws/services/mediapackage/model/HlsManifest.java