size: Int, value: Array[Array[Int]]
# sample of value
[
[1, 2, 1],
[2, 1, 0],
[0, 0, 0],
]
Array[Array[Boolean]]
# sample of value
[
[true, false, true],
[false, false, true],
[true, true, true],
]
Array[Array[Boolean]]
# sample of value
[
[true, false, true],
[false, false, true],
[true, true, true],
]
null