isSizeZero method
Is Size Zero
Iterate through the inner codecs if available, and find whether any of it is non-zero size or not.
Helps to avoid encoding or decoding the values who encapsulates the empty Composite Codec inside one another.
Implementation
@override
bool isSizeZero() {
// Array is size zero if it's empty OR if the inner codec is size zero
return size == 0 || codec.isSizeZero();
}