code: def test_iter():
      assert set(rs.iterkeys()).issuperset(
          {"/qw.txt", "/prefix/1.txt", "/prefix/2.txt"}
      )
      assert set(rs.iterkeys(prefix="/prefix/")) == {
          "/prefix/1.txt",
          "/prefix/2.txt",
      }
      assert set(rs.iterkeys(prefix="/prefix/", strip_prefix=True)) == {
          "1.txt",
          "2.txt",
      }
      assert set(rs.iteritems(prefix="/prefix")) == {
          ("/prefix/1.txt", text),
          ("/prefix/2.txt", text),
      }
      assert set(rs.iteritems(prefix="/prefix", strip_prefix=True)) == {
          ("/1.txt", text),
          ("/2.txt", text),
      }
  
imports: import six
  import library.python.resource
label_desc: Use image node_id 2 for calling a global function with example usage: test_iter() without return types