@Override
    public String toString() {
        return new StringJoiner(", ", DeveloperApiPlanSummaryDto.class.getSimpleName() + "[", "]")
                .add("planId='" + planId + "'")
                .add("planName='" + planName + "'")
                .add("planDescription='" + planDescription + "'")
                .add("version='" + version + "'")
                .add("requiresApproval=" + requiresApproval)
                .add("discoverability=" + discoverability)
                .add("planPolicies=" + planPolicies)
                .toString();
    }
@author Marc Savy {@literal <marc@blackparrotlabs.io>}
manager/api/beans/src/main/java/io/apiman/manager/api/beans/developers/DeveloperApiPlanSummaryDto.java