code: def accum_ref(x, accum):
      for i in range(x.shape[0] - 1):
          accum = accum.at[i + 1].set(accum[i] + x[i])
      return x, accum
  
imports: from functools import partial
  from absl.testing import absltest
  from absl.testing import parameterized
  import numpy
  import jax
  from jax import random
  from jax._src import test_util
  from jax._src.lax.control_flow import for_loop
  import jax.numpy
  from jax import config
label_desc: Use image node_id 10 for calling a global function with example usage: accum_ref(x, accum) and returns: x,  accum