public void writeDoubleArray(double value0, double value1) {
        startArray();
        writeDouble(value0);
        writeComma();
        writeDouble(value1);
        endArray();
    }
If ReferenceDetection has been set, returns the path of the current object, otherwise returns null
@since 2.0.51
@return the path of the current object
core/src/main/java/com/alibaba/fastjson2/JSONWriter.java