Accessing AWS Lambda Context inside Function using SpringBootRequestHandler?

I need access to the AWS Lambda's Context for my lambda function. I am using SpringBootRequestHandler to receive the request, which should call a class implementing the Function interface. Below is a code sample of the two classes:

public class A extends SpringBootRequestHandler<S3Event, String> {
    @Override
    public Object handleRequest(S3Event event, Context context) {
        return super.handleRequest(event, context);
    }
}

@Component("b")
public class B implements Function<S3Event, String> {

    @Override
    public String apply(S3Event string) {
        // this is where I need the context
        // this function should be called by handleRequest
    }
}

I am using spring-cloud-starter-function-web to call the apply method in class B running locally, but this only allows directly calling class B, while class A's handleRequest is never executed. I have tried setting a static Context variable in class B and setting it at the start of handleRequest, but given that handleRequest will not execute locally, this does not work.

The three questions I have are:

1. In an actual AWS environment, would the idea of setting a static variable work? As in, is the flow for the AWS function truly A::handleRequest -> B::apply?
2. If #1 is no, then how might I pass the context to this apply function?
3. If neither 1 or 2 is possible, is there a design that is that allows context to be passed?

To use the Lambda Context in the Function class you just need to use Autowired annotation with the com.amazonaws.services.lambda.runtime.Context class, for example:

@Autowired
private Context context;