probability method
Implementation
double probability(int seedHi, int seedLo) {
final Uint8List buffer = threadBuffer; //.get();
Buffers.putUInt32(buffer, 0, seedLo);
Buffers.putUInt32(buffer, 4, seedHi);
Buffers.putUInt32(buffer, 8, unitHash_);
final int hash = Murmur3_32.digest(buffer, 0);
return (hash & 0xffffffff) * normalizer;
}