0(1) element: null
1(2) element: PyWithStatement
2(4) READ ACCESS: context_manager
3(14) exit context manager: context_manager
4(5,3) element: PyAssertStatement
5(6,3) READ ACCESS: True
6(7,3) READ ACCESS: f
7(8,3) element: PyCallExpression: f
8(9,10,3) READ ACCESS: True
9(12,3) element: null. Condition: True:false
10(11) element: null. Condition: True:true
11(3,13) ASSERTTYPE ACCESS: True
12(15,3) raise: PyAssertStatement
13(14,3) element: PyPrintStatement
14(15) element: PyPrintStatement
15() element: null