def METHOD_NAME(self):
    assert decode_datamap_grid(b"\x00\x00\x00\x00\x00\x00\x00\x00") == (
        -90000,
        -180000,
    )
    assert decode_datamap_grid(b"AAAAAAAAAAA=", codec="base64") == (-90000, -180000)
    assert decode_datamap_grid(b"\x00\x01_\x90\x00\x02\xbf ") == (0, 0)
    assert decode_datamap_grid(b"AAFfkAACvyA=", codec="base64") == (0, 0)
    assert decode_datamap_grid(b"\x00\x02\xbf \x00\x05~@") == (90000, 180000)
    assert decode_datamap_grid(b"\x00\x02\xbf \x00\x05~@", scale=True) == (
        90.0,
        180.0,
    )
    assert decode_datamap_grid(b"AAK/IAAFfkA=", codec="base64") == (90000, 180000)
    assert decode_datamap_grid(b"AAK/IAAFfkA=", scale=True, codec="base64") == (
        90.0,
        180.0,
    )