 +      alterTwigEnv
      });
    },
- 
+
    renderPattern(pattern, data) {
      return new Promise((resolve, reject) => {
 -      const patternPath = path.isAbsolute(pattern.relPath)

@@ -118,8 +130,29 @@ const engine_twig_php = {
   // @todo Add all functions that get called even if disabled to ease implementing engine further
   // Currently all of them return `null` as I'm not totally sure there absence will be ok. Additionally, future improvements may be implemented in this functions.
 
-  findPartials(pattern) {
-    return null;
+  // Find and return any {% extends|include|embed 'template-name' %} within pattern.

diff --git a/node_modules/@pattern-lab/engine-twig-php/lib/engine_twig_php.js b/node_modules/@pattern-lab/engine-twig-php/lib/engine_twig_php.js
index 461a10d..060e37e 100644
--- a/node_modules/@pattern-lab/engine-twig-php/lib/engine_twig_php.js
+++ b/node_modules/@pattern-lab/engine-twig-php/lib/engine_twig_php.js
@@ -26,10 +26,9 @@ const engine_twig_php = {
