presto-record-decoder/src/main/java/io/prestosql/decoder/json/DefaultJsonFieldDecoder.java/JsonValueProvider/getBoolean
class JsonValueProvider:        @Override
        public boolean getBoolean()
        {
            if (value.isValueNode()) {
                return value.asBoolean();
            }
            throw new PrestoException(
                    DECODER_CONVERSION_NOT_SUPPORTED,
                    format("could not parse non-value node as '%s' for column '%s'", columnHandle.getType(), columnHandle.getName()));
        }