def METHOD_NAME():
    layout = tvm.tir.layout("NCHW16c")
    assert layout is not None
    assert isinstance(layout, tvm.tir.Layout)
    assert layout.factor_of("c") == 16
    assert layout.factor_of("C") == 16
    assert layout.factor_of("N") == -1
    assert layout.index_of("N") == 0
    assert layout.index_of("C") == 1
    assert layout.index_of("H") == 2
    assert layout.index_of("W") == 3
    assert layout.index_of("c") == 4
    assert layout.index_of("O") == -1
    assert "N" in layout
    assert "C" in layout
    assert "H" in layout
    assert "W" in layout
    assert "c" in layout
    assert "O" not in layout
    assert layout[0] == "N"
    assert layout[1] == "C"
    assert layout[2] == "H"
    assert layout[3] == "W"
    assert layout[4] == "c"
    assert layout[-1] == "c"