include abstract methods

phpstan.neon

@@ -6,3 +6,4 @@ parameters:
     - '/^Strict comparison using !== between (string|int) and null will always evaluate to true\./'
     - '/^In method "Jgut\\Slim\\Exception\\Handler\\ErrorHandler::determineContentType", caught "Exception" must be rethrown\./'
     - '/^Parameter #(4|5) \$.+ of class ErrorException constructor expects (string|int), (string|int)\|null given\.$/'
+    - '/^Method Whoops\\Handler\\Handler::set(Exception|Inspector|Run)\(\) has no return typehint specified\.$/'

src/Whoops/Renderer/RendererTrait.php

@@ -90,4 +90,24 @@ final public function __invoke(\Throwable $exception, WhoopsInspector $inspector
 
         return $this->handle() ?? Handler::DONE;
     }
+
+    /**
+     * @param \Throwable $exception
+     */
+    abstract public function setException($exception);
+
+    /**
+     * @param WhoopsInspector $inspector
+     */
+    abstract public function setInspector(WhoopsInspector $inspector);
+
+    /**
+     * @param RunInterface $run
+     */
+    abstract public function setRun(RunInterface $run);
+
+    /**
+     * @return int
+     */
+    abstract public function handle();
 }