docs: public void addFamilyWithIntersectionRule() {
      System.out.printf("%nCreating column family %s with intersection GC rule%n", COLUMN_FAMILY_4);
      // [START bigtable_create_family_gc_intersection]
      // Creates a column family with GC policy to drop data that matches all conditions.
  
      // Defines a GC rule to drop cells older than 5 days AND older than the most recent 2 versions.
      DurationRule maxAgeRule = GCRULES.maxAge(5, TimeUnit.DAYS);
      VersionRule versionRule = GCRULES.maxVersions(2);
      IntersectionRule intersectionRule = GCRULES.intersection().rule(maxAgeRule).rule(versionRule);
  
      // Creates column family with given GC rule.
      try {
        // ModifyColumnFamiliesRequest can be used both for adding and modifying families, here it is
        // being used to add a family
        ModifyColumnFamiliesRequest columnFamiliesRequest =
            ModifyColumnFamiliesRequest.of(tableId).addFamily(COLUMN_FAMILY_4, intersectionRule);
        adminClient.modifyFamilies(columnFamiliesRequest);
        System.out.println("Created column family: " + COLUMN_FAMILY_4);
      } catch (AlreadyExistsException e) {
        System.err.println(
            "Failed to create column family with rule, already exists: " + e.getMessage());
      }
      // [END bigtable_create_family_gc_intersection]
    }