jax.extend.random.threefry_prng_impl = ((2,), <function threefry_seed>, <function threefry_split>, <function threefry_random_bits>, <function threefry_fold_in>, 'threefry2x32', 'fry')#

Specifies PRNG key shape and operations.

A PRNG implementation is determined by a key type K and a collection of functions that operate on such keys. The key type K is an array type with element type uint32 and shape specified by key_shape. The type signature of each operations is:

seed :: int[] -> K
fold_in :: K -> int[] -> K
split[shape] :: K -> K[*shape]
random_bits[shape, bit_width] :: K -> uint<bit_width>[*shape]

A PRNG implementation is adapted to an array-like object of keys K by the PRNGKeyArray class, which should be created via the random_seed function.