def get_uri():
    """Return the URI string corresponding to the strongest cap associated
        with this node. If this node is read-only, the URI will only offer
        read-only access. If this node is read-write, the URI will offer
        read-write access.

        If you have read-write access to a node and wish to share merely
        read-only access with others, use get_readonly_uri().
        """
