code: def anchor(self, value):
          
  
          if value is not None:
              assert type(value) is int, "'{0}' attribute: '{1}' type is not 'int'!".format("anchor", value)
              assert value in range(
                  0, 9), "'{0}' attribute: '{1}' need to be in '0' to '8' range!".format("anchor", value)
          self.__anchor = value
docs: Setter for **self.__anchor** attribute.
  
          :param value: Attribute value.
          :type value: int