code: public static Predicate<InetAddress> ofCidr(InetAddress baseAddress, int maskBits) {
          requireNonNull(baseAddress, "baseAddress");
          checkArgument(maskBits >= 0, "maskBits: %s (expected: >= 0)", maskBits);
          return ofCidr(baseAddress, maskBits, maskBits);
      }
docs: Returns a {@link Predicate} which returns {@code true} if the given {@link InetAddress} is in the
  range of a <a href="https://tools.ietf.org/html/rfc4632">Classless Inter-domain Routing (CIDR)</a> block.
  
  @param baseAddress the base {@link InetAddress} of a CIDR notation
  @param maskBits the number of significant bits which describes its network portion