code: @JsonIgnore
      private String getHref() {
          return this.getLinks().stream()
              .filter(link -> link.getRel().equals(REL))
              .map(Link::getHref)
              .findFirst()
              .get();
      }
docs: Returns href of snapshot in format
  "/v2/servers/{accountAlias}/{serverId}/snapshots/{snapshotId}"
  @return href