Bit-pack sub-8-bit unpacked values (uint8, one per element, using only the low bits bits) into a flat little-endian bitstream, bits/8 bytes per bits-wide group of 8 elements (mirrors pack_bits). bits===8 is a no-op (matches the reference).
bits
bits/8
Bit-pack sub-8-bit unpacked values (uint8, one per element, using only the low
bitsbits) into a flat little-endian bitstream,bits/8bytes perbits-wide group of 8 elements (mirrors pack_bits). bits===8 is a no-op (matches the reference).