private boolean parseOneItem(DocumentParseInfo documentParseInfo, boolean docIdAndOperationIsSetExternally) throws IOException {
        parser.nextValue();
        processIndent();
        if (parser.currentName() == null) return false;
        if (indentLevel == 1L) {
            handleIdentLevelOne(documentParseInfo, docIdAndOperationIsSetExternally);
        } else if (indentLevel == 2L) {
            handleIdentLevelTwo(documentParseInfo);
        }
        return true;
    }
Parses one item from the stream.

@return whether an item was found
document/src/main/java/com/yahoo/document/json/document/DocumentParser.java