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Use public JAX API for PRNGKeyArray #498

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merged 2 commits into from
Feb 27, 2023
Merged

Use public JAX API for PRNGKeyArray #498

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56cc5f5
Use public JAX API for PRNGKeyArray
junpenglao Feb 27, 2023
3224185
More type clean ups
junpenglao Feb 27, 2023
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9 changes: 3 additions & 6 deletions blackjax/types.py
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Original file line number Diff line number Diff line change
@@ -1,17 +1,14 @@
from typing import Any, Iterable, Mapping, Union

import jax._src.prng as prng
import jax
import jax.numpy as jnp
import numpy as np

#: JAX or Numpy array
Array = Union[np.ndarray, jnp.ndarray]

#: JAX PyTrees
PyTree = Union[Array, Iterable[Array], Mapping[Any, Array]]
# It is not currently tested but we also support recursive PyTrees.
# Once recursive typing is fully supported (https://github.com/python/mypy/issues/731), we can uncomment the line below.
# PyTree = Union[Array, Iterable["PyTree"], Mapping[Any, "PyTree"]]
PyTree = Union[Array, Iterable["PyTree"], Mapping[Any, "PyTree"]]

#: JAX PRNGKey
PRNGKey = prng.PRNGKeyArray
PRNGKey = jax.random.PRNGKeyArray