TestPlacement typedef
TestPlacement =
({List<int> blockHash, List<List<int> > branch, int txIndex}) Function(int round, Transaction witness)
Where the test chain's round round has its witness mined: the block,
the witness's index in it and its merkle branch.
Implementation
typedef TestPlacement = ({List<int> blockHash, int txIndex, List<List<int>> branch}) Function(int round, Transaction witness);