** Implement to define a 'ResponseProcessor'. ** ** 'ResponseProcessors' are responsible for processing the return values from request handlers. Often this involves ** sending content to the client. ** ** Example 'ResponseProcessors' that are provided by BedSheet are:** - 'RedirectProcessor' - sets the 'Location' HTTP response header and a corresponding HTTP status code. ** - 'TextProcessor' - sets the 'Content-Type' HTTP response header and sends the text to the client.** ** IoC Configuration** =================** Instances of 'ResponseProcessor' should be contributed to the 'ResponseProcessors' service and mapped to an ** 'Type' representing the object it handles. ** ** For example, in your 'AppModule' class:** ** pre>** syntax: fantom ** @Contribute { serviceType=ResponseProcessors# }** Void contributeResponseProcessors(Configuration config) {** config[User#] = UserInfoPage()** }** <preconstmixin ResponseProcessor {** Return 'true' if a response has been sent to the client and all processing has finished. ** Else return a response object for further processing, example, `Text` or `HttpStatus`. abstract Obj process(Obj response)}