def order(direction)
      direction = direction.to_sym
      direction = :descending unless DIRECTIONS.include?(direction)
      direction = :descending if direction == :desc
      direction = :ascending if direction == :asc
      @order = direction
      self
    end
def order(direction)
      direction = direction.to_sym
      direction = :descending unless DIRECTIONS.include?(direction)
      direction = :descending if direction == :desc
      direction = :ascending if direction == :asc
      @order = direction
      self
    end
Changes the direction of the sort. Defaults to `:descending`. Chainable with {#sort_by}.

 @param [Symbol, String] direction Any direction from {DIRECTIONS} to direct the sort.
 @return [Report] The {Report} object, suitable for chaining or display.