code: def _unwrap_undefined(x, aval=False):
      if isinstance(x, _WrappedPrimal):
          if aval:
              return x.value.aval
          else:
              return x.value
      else:
          return x
  
imports: import functools
  from typing import Any
  import jax
  import jax.core
  import jax.interpreters.ad
  import jax.interpreters.batching
  import jax.interpreters.mlir
  import jax.tree_util
  from jaxtyping import PyTree
  from .._filters import combine, is_array, is_array_like, partition
  from .._tree import tree_equal
label_desc: Use image node_id 2 for calling a global function with example usage: _unwrap_undefined(x, aval) and returns: x, x, x