addFromInviteLink

The access level required in order to join the group from the invite link, as an AccessControl.AccessRequired enum from the upstream Signal groups.proto file. This is UNSATISFIABLE (4) when the group link is disabled; ADMINISTRATOR (3) when the group link is enabled, but an administrator must approve new members; and ANY (1) when the group link is enabled and no approval is required. See theGroupAccessControl structure and the upstream enum ordinals.