`Random.Gen`

Custom random generator.

The `Fun.Generic.random`

function consults this key in the metadata of a gist `g`

before generating values described by the gist. If a function is found, the values are generated with this function instead.

This can also be used to indicate that you would like a substructure to remain constant. The `Gen.const`

function does that.

The type for custom random generators. `bound`

is a bounding factor that depends on `size`

for recursive data structures when the bound reaches `0`

you should no longer recurse.

`val const : 'a -> 'a t`

`const v`

ignores the random generator and returns `v`

.

`type 'a meta := 'a Type.Gist.Meta.t`

`val mem : 'a meta -> bool`

`mem m`

is `true`

iff `m`

has a binding for the key.