docs: def fromType(datatype):
          """Use this method to create a MultiValue type from a specific GP Value
             type.
             
                >>> gpmultistr = arcrest.GPMultiValue.fromType(arcrest.GPString)
                >>> gpvalue = gpmultistr(["a", "b", "c"])
          """
          if issubclass(datatype, GPBaseType):
              return GPBaseType._get_type_by_name("GPMultiValue:%s" % 
                                                  datatype.__name__)
          else:
              return GPBaseType._get_type_by_name("GPMultiValue:%s" % 
                                                  str(datatype))