code: def _maybe_concretize(x: Any):
      # This is roughly the same logic as core.concrete_or_error, but we avoid
      # calling that because constructing the ConcretizationTypeError can be
      # expensive as the size of the tracing context (i.e. the jaxpr) grows.
      if isinstance(x, core.Tracer):
          if isinstance(x.aval, core.ConcreteArray):
              return x.aval.val
          else:
              return None
      return x
  
imports: from __future__ import annotations
  import dataclasses
  from typing import Any, Union
  from jax._src import core
  from jax._src import tree_util
  from jax._src.typing import Array
  from jax._src.util import merge_lists
  from jax._src.util import partition_list
  import numpy
label_desc: Use image node_id 3 for calling a global function with example usage: _maybe_concretize(x) and returns: x, x, None