code: public java.util.List<Subnet> getSubnets() {
          if (subnets == null) {
              subnets = new com.amazonaws.internal.SdkInternalList<Subnet>();
          }
          return subnets;
      }
docs: <p>
  A list of subnets associated with the cache subnet group.
  </p>
  
  @return A list of subnets associated with the cache subnet group.