public void InitializeContext(IEnumerableExpression <ISample> samples, ISynchronizationContext context)
{
context.Data.Add(_platesKey, samples
.ChunkIndexed(8, (samples, column) => new ProcessColumn(column, samples.Select(tuple => new ProcessWell(tuple.Item2 % 96, tuple.Item1))))
.Chunk(12, (columns, plateIndex) => new ProcessPlate($"Plate{plateIndex+1:00}", columns))
.AsNotifiable());
context.Data.Add(_tubesKey, samples
.ChunkIndexed(16, (samples, tubeIndex) => new Tubes($"Tube{tubeIndex+1:00}", samples.Select(tuple => new ProcessWell(tuple.Item2 % 16, tuple.Item1))))
.AsNotifiable());
}