Below is the code from nextflow site (https://www.nextflow.io/docs/edge/operator.html#grouptuple).
For the output, the first is A B C, and the second is C, A.
Is there a way to make the output like this
[1, [A, B, C]] [2, [A, C]]
That is, the stuff inside  is in some order.
Channel .of( [1, 'A'], [1, 'B'], [2, 'C'], [3, 'B'], [1, 'C'], [2, 'A'], [3, 'D'] ) .groupTuple() .view() [1, [A, B, C]] [2, [C, A]] [3, [B, D]]