code: def _load_discharge_rule(
      in_avals, out_avals, *args_flat, args_tree, **_
  ):
      del out_avals  # Unused.
      ref, indexers, mask, other = args_tree.unflatten(args_flat)
      # TODO(sharadmv): add support for multiple indexers
      if len(indexers) > 1:
          raise NotImplementedError(
              "Only one indexer supported in discharge rule."
          )
      idx = indexers[0]
      if all(
          (isinstance(s, Slice) or not s.shape) for s in idx.indices
      ):
          indices = idx.indices
          scalar_dims = [
              not isinstance(s, Slice) and not s.shape for s in indices
          ]
          slice_starts = [
              s.start if isinstance(s, Slice) else s for s in indices
          ]
          slice_sizes = tuple(
              s.size if isinstance(s, Slice) else 1 for s in indices
          )
          out_ones = lax.dynamic_slice(
              ref, slice_starts, slice_sizes=slice_sizes
          )
          out_indexer = tuple(
              0 if scalar else slice(None) for scalar in scalar_dims
          )
          out = out_ones[out_indexer]
      elif all(not isinstance(s, Slice) for s in idx.indices):
          out = ref[idx.indices]
      else:
          raise NotImplementedError
      if mask is not None and other is not None:
          out = jnp.where(mask, out, other)
      return (None,) * len(in_avals), out
  
imports: from __future__ import annotations
  import enum
  import functools
  from typing import Any
  import jax
  from jax import lax
  from jax import tree_util
  from jax._src import ad_util
  from jax._src import core
  from jax._src import pretty_printer
  from jax._src import state
  from jax._src.util import safe_map, safe_zip
  from jax._src.state import discharge
  from jax._src.state import indexing
  from jax._src.state import primitives
  from jax.interpreters import ad
  from jax.interpreters import mlir
  from jax.interpreters import xla
  import jax.numpy
  from jax._src.pallas import core
label_desc: Use image node_id 18 for calling a global function with example usage: _load_discharge_rule(in_avals, out_avals) and returns: unknown,  out