toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (aes128 != null) 'aes128': aes128!,
if (iv != null) 'iv': iv!,
if (key != null) 'key': key!,
if (mpegCenc != null) 'mpegCenc': mpegCenc!,
if (sampleAes != null) 'sampleAes': sampleAes!,
};