$packInt64 method
Implementation
void $packInt64(int value) {
_data!.buffer.asByteData().setInt64(_offset, value, Endian.big);
_offset += 8;
}
void $packInt64(int value) {
_data!.buffer.asByteData().setInt64(_offset, value, Endian.big);
_offset += 8;
}