code: def _get_abstract_eval(ref_aval: AbstractRef, *args, tree):
      indexers = tree_util.tree_unflatten(tree, args)
      if not isinstance(ref_aval, AbstractRef):
          raise ValueError(
              f"`get` must be called on `Ref` types: {ref_aval}."
          )
      if isinstance(ref_aval.inner_aval, core.ShapedArray):
          out_shape = _shape_after_indexing(ref_aval.shape, indexers)
          out_aval = ref_aval.inner_aval.update(shape=out_shape)
      else:
          if indexers:
              raise ValueError(
                  "Cannot index non-shaped array with nontrivial indices."
              )
          out_aval = ref_aval.inner_aval
      return (out_aval, {ReadEffect(0)})
  
imports: from __future__ import annotations
  from functools import partial
  from typing import Any, Union
  import numpy
  from jax._src import ad_util
  from jax._src import core
  from jax._src import pretty_printer
  from jax._src import tree_util
  from jax._src.interpreters import ad
  from jax._src.interpreters import batching
  from jax._src.interpreters import partial_eval
  from jax._src.interpreters import mlir
  from jax._src.lax import lax
  from jax._src.typing import Array
  from jax._src.state import indexing
  from jax._src.state.types import AbstractRef, RefView, ReadEffect, WriteEffect, AccumEffect
  from jax._src.util import safe_map, safe_zip
label_desc: Use image node_id 11 for calling a global function with example usage: _get_abstract_eval(ref_aval) and returns: out_aval,  unknown