code: def parseStorage(storageData):
      
      if storageData == "EBS only":
          return [0, 0]
      else:
          specs = storageData.strip().split()
          if isNumber(specs[0]) and specs[1] == 'x' and isNumber(specs[2]):
              return float(specs[0].replace(',', '')), float(specs[2].replace(',', ''))
          else:
              raise RuntimeError('EC2 JSON format has likely changed.  Error parsing disk specs.')
docs: Parses EC2 JSON storage param string into a number.
  
      Examples:
          "2 x 160 SSD"
          "3 x 2000 HDD"
          "EBS only"
          "1 x 410"
          "8 x 1.9 NVMe SSD"
  
      :param str storageData: EC2 JSON storage param string.
      :return: Two floats representing: (# of disks), and (disk_capacity in GiB of each disk).