<commit_before>class Date
  def pred
    self - 1
  end unless method_defined? :pred

end # class Date<commit_msg>Added YARD docs for Date<commit_after># Extend Date with methods to find the previous Date
class Date

  # Decrement the Date by one day
  #
  # @example
  #   previous_day = date.pred
  #
  # @return [Date]
  #
  # @api public
  def pred
    self - 1
  end unless method_defined? :pred

end # class Date
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