@SuppressWarnings("CheckedExceptionNotThrown")
  public static JsonKeysetReader withInputStream(InputStream input) throws IOException {
    return new JsonKeysetReader(input);
  }
Static method to create a JsonKeysetReader from an {@link InputStream}.

<p>Note: the input stream won't be read until {@link JsonKeysetReader#read} or {@link
JsonKeysetReader#readEncrypted} is called.
java_src/src/main/java/com/google/crypto/tink/JsonKeysetReader.java