Base2-NULLS encoding is a encoding involving two characters: U+200D (ZERO WIDTH JOINER) and U+200B (ZERO WIDTH SPACE), which is a correspondence to binary, where U+200D is correspondending to 0 in binary, and U+200B is 1. The display of Base2-NULLS-encoded text is completely invisible in general because it is filled with two zero-width characters as mentioned before, which is also its benefit.
INTO