alias FeatureContext =
Tuple!(
SameInputsSpendOnOneContract, "SameInputsSpendOnOneContract",
OneContractWhereSomeBillsAreUsedTwice, "OneContractWhereSomeBillsAreUsedTwice",
DifferentContractsDifferentNodes, "DifferentContractsDifferentNodes",
SameContractDifferentNodes, "SameContractDifferentNodes",
SameContractInDifferentEpochs, "SameContractInDifferentEpochs",
SameContractInDifferentEpochsDifferentNode, "SameContractInDifferentEpochsDifferentNode",
TwoContractsSameOutput, "TwoContractsSameOutput",
BillAge, "BillAge",
FeatureGroup*, "result")