MetricContext (unirest-java 4.0.0-RC1 API)

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
```
@FunctionalInterface
public interface MetricContext
```
A metric context for the current request

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  void complete(HttpResponseSummary httpResponse, Exception ex)
  Finishes a Http Request.

- Method Detail
  - complete
```
void complete(HttpResponseSummary httpResponse,
              Exception ex)
```
    Finishes a Http Request. Called just after the main request but before any mapping function including before any streaming responses (like file downloads) are complete.
    
    Parameters:
    
    httpResponse - a summary of the just executed response or null in the case of a system exception.
    
    ex - an exception if one happened or null . Note that this is not just a 500 from the remote, but more likely a socket or connection timeout.