def set_target_ref(self, value):
if value is None or not isinstance(value, str):<EOL><INDENT>raise TypeError("<STR_LIT>")<EOL><DEDENT>else:<EOL><INDENT>self.__target_ref = value<EOL><DEDENT>
Setter for 'target_ref' field.
:param value - a new value of 'target_ref' field. Must be a String type.