code: def parse(raw_data)
        raw_data.each_with_object(sell: {}, buy: {}) do |row, result|
          next unless row.name[3] == 'B'
          currency    = row.name[0..2].to_sym
          action      = row.name[4..-1].to_sym
          action_rate = row.value.to_f
          action_rate = (action_rate * 100).round(4) if currency == :JPY
  
          result[action][currency] = action_rate
        end
      end
docs: Parse the #raw_exchange_rates returned in response
   @param [Array] of the raw_data scraped
   @return [Hash] of exchange rates for selling and buying
     {
       { sell: { SYM: rate }, { SYM: rate }, ... },
       { buy:  { SYM: rate }, { SYM: rate }, ... }
     }