def rates(params = {})
      request_params = params.merge(access_params)
      request = Requests::Rate::Show.new(request_params)
      request.call!
    end
def rates(params = {})
      request_params = params.merge(access_params)
      request = Requests::Rate::Show.new(request_params)
      request.call!
    end
GET
 /api/v1/rates
 Parameters:
   partner_id:
     String, required
     API token
   api_secret:
     String, required
   currency:
     One of: [USDPHP, USDUSD, USDKRW, USDAUD, USDCAD, USDJPY, USDNZD, USDSGD, USDHKD,
              USDCNY, USDEUR, USDVND, USDSAR, USDTWD, USDQAR, USDKWD, USDAED, USDGBP,
              USDMYR, USDINR, USDIDR, USDBTC],
     optional