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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 reacher():
 """Configuration for MuJoCo's reacher task."""

  locals().update(default())
  # Environment
  env = 'Reacher-v2'
  max_length = 1000
  steps = 5e6  # 5M
  discount = 0.985
  update_every = 60
  return locals()