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Avoid usage of deprecated jax.core APIs. #5420

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Avoid usage of deprecated jax.core APIs. #5420

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10 changes: 9 additions & 1 deletion flax/nnx/variablelib.py
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,7 @@
from jax._src.state.types import AbstractRef
import jax.experimental
from jax.experimental import hijax as hjx
import jax.extend as jex
import jax.tree_util as jtu
import treescope # type: ignore[import-untyped]

Expand Down Expand Up @@ -286,7 +287,14 @@ def normalize(self):
leaf_types = tuple(a.normalize() for a in self.leaf_avals)
return VariableQDD(leaf_types, self.treedef, self.var_type)

class VariableEffect(jax.core.Effect): ...
try:
# JAX v0.10.0 and newer.
Effect: type = jex.core.Effect
except AttributeError:
# JAX v0.9.2 and older.
Effect = jax.core.Effect

class VariableEffect(Effect): ...


variable_effect = VariableEffect()
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