Can I get the **full JSON string** using [JSONPath](https://github.com/json-path/JsonPath)?

I failed using different combinations `$` `*` `$..*` `$*`

> 
> $ The root element to query. This starts all path expressions.
> 
> 
> \* Wildcard. Available anywhere a name or numeric are required.
> 
> 
> 

I'm using JMeter's [JSON Extractor](http://jmeter.apache.org/usermanual/component_reference.html#JSON_Extractor) and sometimes I need to retrieve all/full response using JSONPath expression

**EDIT**

Same results with `$[*]` as @Daniel suggested