Merge pull request #30 from reactphp-parallel/defer-void-notifications

Defer void notifications

Author: WyriHaximus

composer.json

@@ -15,10 +15,12 @@
         "ext-parallel": "*",
         "api-clients/rx": "^2.2",
         "composer-plugin-api": "^2 || ^1.1",
+        "doctrine/annotations": "^1.10",
         "igorw/get-in": "^1.0",
         "nikic/php-parser": "^4.9",
         "psr/container": "^1.0",
         "psr/log": "^1.1",
+        "react-parallel/object-proxy-attributes": "dev-main",
         "react-parallel/react-parallel": "^1.0",
         "rx/operator-extras": "^2.1",
         "wyrihaximus/constants": "^1.5",