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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def transformer_parsing_big():
 """HParams for parsing on WSJ semi-supervised."""

  hparams = transformer_big()
  hparams.max_length = 512
  hparams.shared_source_target_embedding = False
  hparams.learning_rate_warmup_steps = 4000
  hparams.layer_prepostprocess_dropout = 0.1
  hparams.batch_size = 2048
  hparams.learning_rate = 0.05
  return hparams