code: def _wrap_getter(func, wrap):
      """
      Getters generated from a Blockwise layer might be wrapped in a SubgraphCallable.
      Make sure that the optimization functions can still work if that is the case.
      """
      if wrap:
          return SubgraphCallable(
              {"key": (func, "index")}, outkey="key", inkeys="index"
          )
      else:
          return func
  
imports: from __future__ import annotations
  import pytest
  import numpy
  import dask
  import dask.array
  from dask.array.chunk import getitem
  from dask.array.core import getter
  from dask.array.core import getter_nofancy
  from dask.array.optimization import _is_getter_task, fuse_slice, optimize, optimize_blockwise, optimize_slices
  from dask.array.utils import assert_eq
  from dask.highlevelgraph import HighLevelGraph
  from dask.optimization import SubgraphCallable, fuse
  from dask.utils import SerializableLock
label_desc: Use image node_id 1 for calling a global function with example usage: _wrap_getter(func, wrap) and returns: SubgraphCallable, func