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next_u64

random.next_u64

(exclusive_bound u64)
 => 
u64
return next random number of type u64 in the range 0..exclusive_bound-1

Note: uniform distribution is not perfect, it gets worse the closer exclusive_bound gets to 2^64, because internal calculation uses modulo
0.095dev (2025-10-09 18:01:25 GIT hash 4826e516431c193e428991dd546a46472973d8d4 built by fridi@fzen)