serialize method
Serialize.
Implementation
@override
void serialize(List<int> buffer) {
// Write type-id 0x57e0a9cb.
buffer.writeInt32(0x57e0a9cb);
// Write fields.
buffer.writeInt32(duration);
buffer.writeString(mimeType);
buffer.writeInt32(size);
buffer.writeBytes(key);
buffer.writeBytes(iv);
// Finished serialization.
}