pub const NUM_VALID: usize = 31;Expand description
The number of valid block sizes.
NUM_VALID is the smallest value which 2n exceeds
u32::MAX and this value itself is not valid as a base-2 logarithm
form of the block size (in fact, this is the smallest invalid value)
in the fuzzy hash object.
Note that, it can however be a valid effective base-2 logarithm form
of the block size of the block hash 2 where the (base) block size (as in
a fuzzy hash) is the largest valid one.
Some low level methods may accept this value (in u8) as a base-2
logarithm form of the block size (explicitly documented in such cases).