parameters list, where each parameter has an id and a type.
expression, which refers function parameters with ValUse.
Unique id of the node class used in serialization of ErgoTree.
Unique id of the node class used in serialization of ErgoTree.
This is not used as operation, but rather to form a program structure
The type of the value represented by this node.
parameters list, where each parameter has an id and a type.
expression, which refers function parameters with ValUse.