The maximum number of relations of this kind which may be established to other service units. Defaults to 1 for requires relations, and to "none" (no limit) for provides and peers relations. While you may define it, this field is not yet enforced by juju.
As of this writing, "limit" is defined on https:/ /juju.ubuntu. com/docs/ authors- charm-anatomy. html as the following.
The maximum number of relations of this kind which may be established to other service units. Defaults to 1 for requires relations, and to "none" (no limit) for provides and peers relations. While you may define it, this field is not yet enforced by juju.