def _tracker_str(item):
instance = tracker(item)<EOL>if instance is not None:<EOL><INDENT>if isinstance(instance, str):<EOL><INDENT>return instance<EOL><DEDENT>elif isinstance(instance, tuple):<EOL><INDENT>return instance<EOL><DEDENT>else:<EOL><INDENT>return instance.uuid<EOL><DEDENT><DEDENT>else:<EOL><INDENT>return item<EOL><DEDENT>
Returns a string representation of the tracker object for the given item.

    Args:
        item: object to get tracker for.
        fqdn (str): fully-qualified domain name of the object.