CloudEventsFunction (functions-framework-api 1.1.0 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 CloudEventsFunction
```
Represents a Cloud Function that is activated by an event and parsed into a CloudEvent object.

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  void accept(io.cloudevents.CloudEvent event)
  Called to service an incoming event.

- Method Detail
  - accept
```
void accept(io.cloudevents.CloudEvent event)
     throws java.lang.Exception
```
    Called to service an incoming event. This interface is implemented by user code to provide the action for a given background function. If this method throws any exception (including any Error) then the HTTP response will have a 500 status code.
    
    Parameters:
    
    event - the event.
    
    Throws:
    
    java.lang.Exception - to produce a 500 status code in the HTTP response.