Python AST node definitions and utilities.
AST nodes are very similary defined like Python AST. But a few exceptions exist due to parser optimization. They can be transformed to matching Python-styled AST in reasonable cost.
[PythonArguments] is replaced by [Arguments]. The new [Arguments] type representation uses a new type [ArgWithDefault] to represent arguments with default values. See each type documentation for more details.
A few top-level sum types are renamed to human friendly names.
[CmpOp] refers cmpop
[UnaryOp] refers unaryop
[BoolOp] refers boolop
[WithItem] refers withitem
[ExceptHandler] refers excepthandler