<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def aligned_8k_grouped():
 """version for languagemodel_wiki_scramble8k50. languagemodel_wiki_scramble1k50, 1gpu, 7k steps: log(ppl)_eval = 2.92 3.3 steps/sec on P100 8gpu (8x batch), 7k steps: log(ppl)_eval = 2.15 Returns: a hparams object """

  hparams = aligned_grouped()
  hparams.batch_size = 8192
  # hparams.attention_image_summary = False
  hparams.num_groups = 16
  hparams.multiplicative_overhead = 1.1
  return hparams