toXML method
Implementation
@override
String toXML() {
return '''<ddDeviceParameter numCharsPerLine="$numCharsPerLine" numLines="$numLines" supportsAnimation="$supportsAnimation" pixelsTall="$pixelsTall" pixelsWide="$pixelsWide" >
${vendorModelInfo.toXML()}
${ipAndPort.toXML()}
${status.toXML()}
</ddDeviceParameter>
''';
}