code: def _maybe_convert_to_dynamic_slice(
      indexer: indexing.NDIndexer,
  ) -> (
      tuple[tuple[Array | int, ...], tuple[int, ...], tuple[int, ...]]
      | None
  ):
      # An NDIndexer only corresponds to a `dynamic_slice` or `dynamic_update_slice`
      # if each of the indexers is a `Slice` or a ()-shaped value.
      if not all(
          isinstance(i, indexing.Slice) or not np.shape(i)
          for i in indexer.indices
      ):
          return None
      _convert_i32 = lambda x: lax.convert_element_type(
          x, np.dtype("int32")
      )
      starts = tuple(
          _convert_i32(i.start)
          if isinstance(i, indexing.Slice)
          else _convert_i32(i)
          for i in indexer.indices
      )
      sizes = tuple(
          i.size if isinstance(i, indexing.Slice) else 1
          for i in indexer.indices
      )
      squeeze_dims = tuple(
          i
          for i, idx in enumerate(indexer.indices)
          if not isinstance(idx, indexing.Slice)
      )
      return starts, sizes, squeeze_dims
  
imports: from __future__ import annotations
  from collections.abc import Sequence
  import dataclasses
  from functools import partial
  import operator
  from typing import Any, Callable, Protocol
  import numpy
  from jax._src import api_util
  from jax._src import ad_util
  from jax._src import config
  from jax._src import core
  from jax._src import linear_util
  from jax._src import source_info_util
  from jax._src import tree_util
  from jax._src.interpreters import ad
  from jax._src.interpreters import mlir
  from jax._src.interpreters import partial_eval
  from jax._src.lax import lax
  from jax._src.lax import slicing
  from jax._src.state import indexing
  from jax._src.state.types import AbstractRef, RefEffect
  from jax._src.state.primitives import get_p, swap_p, addupdate_p
  from jax._src.state.utils import hoist_consts_to_refs
  from jax._src.typing import Array
  from jax._src.util import safe_map, safe_zip, split_list, weakref_lru_cache, partition_list, merge_lists, split_dict
label_desc: Use image node_id 7 for calling a global function with example usage: _maybe_convert_to_dynamic_slice(indexer) and returns: starts,  sizes,  squeeze_dims, None