@property<EOL><INDENT>def _parent_type(self):<DEDENT>
if hasattr(self, '<STR_LIT>'):<EOL><INDENT>return '<STR_LIT>'<EOL><DEDENT>elif hasattr(self, '<STR_LIT>'):<EOL><INDENT>return '<STR_LIT>'<EOL><DEDENT>elif hasattr(self, '<STR_LIT>'):<EOL><INDENT>return '<STR_LIT>'<EOL><DEDENT>elif hasattr(self, '<STR_LIT>'):<EOL><INDENT>return '<STR_LIT:user>'<EOL><DEDENT>else:<EOL><INDENT>raise ValueError(<EOL>"<STR_LIT>")<EOL><DEDENT>
Return whether the content migration was spawned from a course or group.

:rtype: str