write method
Is called when a value has to be encoded.
Implementation
@override
void write(BinaryWriter writer, Presence obj) {
writer
..writeByte(9)
..writeByte(1)
..write(obj.value)
..writeByte(3)
..write(obj.emptyIs)
..writeByte(4)
..write(obj.color)
..writeByte(5)
..write(obj.visibilityDate)
..writeByte(6)
..write(obj.visible)
..writeByte(100)
..write(obj.title)
..writeByte(101)
..write(obj.author)
..writeByte(102)
..write(obj.date)
..writeByte(103)
..write(obj.position);
}