TwoLayered block model that has two layers and first layer use custom "brightness" tag

gistfile1.txt

{   "parent": "block/block",
    "elements": [
        {   "from": [ 0, 0, 0 ],
            "to": [ 16, 16, 16 ],
            "faces": {
                "down":  { "uv": [ 0, 0, 16, 16 ], "texture": "#firstLayer", "cullface": "down", "tintindex": 0, "brightness": 220 },
                "up":    { "uv": [ 0, 0, 16, 16 ], "texture": "#firstLayer", "cullface": "up", "tintindex": 0, "brightness": 220 },
                "north": { "uv": [ 0, 0, 16, 16 ], "texture": "#firstLayer", "cullface": "north", "tintindex": 0, "brightness": 220 },
                "south": { "uv": [ 0, 0, 16, 16 ], "texture": "#firstLayer", "cullface": "south", "tintindex": 0, "brightness": 220 },
                "west":  { "uv": [ 0, 0, 16, 16 ], "texture": "#firstLayer", "cullface": "west", "tintindex": 0, "brightness": 220 },
                "east":  { "uv": [ 0, 0, 16, 16 ], "texture": "#firstLayer", "cullface": "east", "tintindex": 0, "brightness": 220 }
            }
        },
        {   "from": [ 0, 0, 0 ],
            "to": [ 16, 16, 16 ],
            "faces": {
                "down":  { "uv": [ 0, 0, 16, 16 ], "texture": "#secondLayer", "cullface": "down" },
                "up":    { "uv": [ 0, 0, 16, 16 ], "texture": "#secondLayer", "cullface": "up" },
                "north": { "uv": [ 0, 0, 16, 16 ], "texture": "#secondLayer", "cullface": "north" },
                "south": { "uv": [ 0, 0, 16, 16 ], "texture": "#secondLayer", "cullface": "south" },
                "west":  { "uv": [ 0, 0, 16, 16 ], "texture": "#secondLayer", "cullface": "west" },
                "east":  { "uv": [ 0, 0, 16, 16 ], "texture": "#secondLayer", "cullface": "east" }
            }
        }
    ]
}