code: public Collection<BoxGroupMembership.Info> getMemberships() {
          BoxAPIConnection api = this.getAPI();
          URL url = USER_MEMBERSHIPS_URL_TEMPLATE.build(this.getAPI().getBaseURL(), this.getID());
  
          BoxAPIRequest request = new BoxAPIRequest(api, url, "GET");
          BoxJSONResponse response = (BoxJSONResponse) request.send();
          JsonObject responseJSON = JsonObject.readFrom(response.getJSON());
  
          int entriesCount = responseJSON.get("total_count").asInt();
          Collection<BoxGroupMembership.Info> memberships = new ArrayList<BoxGroupMembership.Info>(entriesCount);
          JsonArray entries = responseJSON.get("entries").asArray();
          for (JsonValue entry : entries) {
              JsonObject entryObject = entry.asObject();
              BoxGroupMembership membership = new BoxGroupMembership(api, entryObject.get("id").asString());
              BoxGroupMembership.Info info = membership.new Info(entryObject);
              memberships.add(info);
          }
  
          return memberships;
      }
docs: Gets information about all of the group memberships for this user.
  Does not support paging.
  
  <p>Note: This method is only available to enterprise admins.</p>
  
  @return a collection of information about the group memberships for this user.