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venv/lib/python3.12/site-packages/jax/_src/extend/random.py

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+# Copyright 2023 The JAX Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from collections.abc import Callable, Hashable
+
+from jax._src import prng
+from jax._src import random
+from jax._src.typing import Array
+
+Shape = tuple[int, ...]
+
+def define_prng_impl(*,
+                     key_shape: Shape,
+                     seed: Callable[[Array], Array],
+                     split: Callable[[Array, Shape], Array],
+                     random_bits: Callable[[Array, int, Shape], Array],
+                     fold_in: Callable[[Array, int], Array],
+                     name: str = '<unnamed>',
+                     tag: str = '?') -> Hashable:
+  return random.PRNGSpec(prng.PRNGImpl(
+      key_shape, seed, split, random_bits, fold_in,
+      name=name, tag=tag))