code: public Iterable<BoxRetentionPolicyAssignment.Info> getEnterpriseAssignments(int limit, String ... fields) {
          return this.getAssignments(BoxRetentionPolicyAssignment.TYPE_ENTERPRISE, limit, fields);
      }
docs: Returns iterable with all enterprise assignments of this retention policy.
  @param limit the limit of entries per response. The default value is 100.
  @param fields the fields to retrieve.
  @return an iterable containing all enterprise assignments.