[mutable-arrays] make isinstance(ref, jax.Ref) work #32441
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An alternative is `isinstance(jax.typeof(ref), jax.ref.AbstractRef)`, but that requires that `ref` be a jax type (or else a TypeError is raised) and is more verbose. Allowing this isinstance check matches what we do for Arrays.
levskaya
approved these changes
Oct 8, 2025
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An alternative is
isinstance(jax.typeof(ref), jax.ref.AbstractRef), but that requires thatrefbe a jax type (or else a TypeError is raised) and is more verbose. Allowing this isinstance check matches what we do for Arrays.