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1(2) element: PyAssignmentStatement
2(3) WRITE ACCESS: foo
3(4) element: PyImportStatement
4(5) WRITE ACCESS: a
5(6) element: PyImportStatement
6(7) WRITE ACCESS: b
7(8) element: PyImportStatement
8(9) WRITE ACCESS: d
9(10) element: PyImportStatement
10(11) WRITE ACCESS: h
11(12) element: PyImportStatement
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13(14) element: PyFromImportStatement
14(15) WRITE ACCESS: m
15(16) element: PyFromImportStatement
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17(18) element: PyFromImportStatement
18(19) WRITE ACCESS: t
19() element: null