Fix import errors & freeze the latest compatible JAX version. Fixes #60

PiperOrigin-RevId: 403372806

distrax/_src/__init__.py

@@ -0,0 +1,14 @@
+# Copyright 2021 DeepMind Technologies Limited. All Rights Reserved.
+#
+# 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
+#
+#     http://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.
+# ==============================================================================

requirements/requirements.txt

@@ -1,6 +1,6 @@
 absl-py>=0.9.0
 chex>=0.0.7
-jax>=0.2.13
+jax<=0.2.21  # remove once TFP is compatible with JAX>=0.2.22
 jaxlib>=0.1.67
 numpy>=1.18.0
 tensorflow-probability>=0.14.1