code: def test_list_interface_getitem():
      l = DogmaticList([0, 1, 2])
      assert l[0] == 0
      assert l[1] == 1
      assert l[2] == 2
  
      assert l[-1] == 2
      assert l[-2] == 1
      assert l[-3] == 0
  
imports: import pytest
  from sacred.config.custom_containers import DogmaticDict, DogmaticList
label_desc: Use image node_id 15 for calling a global function with example usage: test_list_interface_getitem() without return types