Each costable operation is described in one of the following ways:
1) using ValueCompanion - operation with separate node class
2) using SMethod - operation represented as method.
3) using string name - intermediate sub-operation present in cost model, but
which is not a separate operation of ErgoTree.
Each costable operation is described in one of the following ways: 1) using ValueCompanion - operation with separate node class 2) using SMethod - operation represented as method. 3) using string name - intermediate sub-operation present in cost model, but which is not a separate operation of ErgoTree.