code: def fromJSON(value):
          
          j = json.loads(value)
          v = GPDate()
          if "defaultValue" in j:
              v.value = j['defaultValue']
          else:
              v.value = j['value']
          if 'paramName' in j:
              v.paramName = j['paramName']
          elif 'name' in j:
              v.paramName = j['name']
          #from datetime import datetime
          #if isinstance(value, datetime):
              #v.value = local_time_to_online(value)
          #else:
              #v.value = value
          #v.paramName = j['paramName']
          return v
docs: loads the GP object from a JSON string