package popper

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val of_length : int -> string t

of_length n is a sample that always produces a string of fixed size n.

val range : int -> int -> string t

range min max s is a sample that always produces a string of size n, where min <= n < max, using the given sample s.

val alpha_numeric : string t

alpha_numeric is a sample that produces strings containing alhpa-numeric characthers.

val numeric : string t

numeric is a sample that produces strings containing numbers

val alpha : string t

alpha a sample that produces strings containing characters a-z, both upper and lower case.

val upper : string t

upper is sample that always produces upper-case characters.

val lower : string t

upper is sample that always produces lower-case characters.