diff --git a/server/src/browser-management/classes/BrowserPool.ts b/server/src/browser-management/classes/BrowserPool.ts
index 21fc4b00..5244fcea 100644
--- a/server/src/browser-management/classes/BrowserPool.ts
+++ b/server/src/browser-management/classes/BrowserPool.ts
@@ -21,3 +21,13 @@ interface BrowserPoolInfo {
     userId: string,
 }
 
+/**
+ * Dictionary of all the active remote browser's instances indexed by their id.
+ * The value in this dictionary is of type BrowserPoolInfo,
+ * which provides additional information about the browser's usage.
+ * @category Types
+ */
+interface PoolDictionary {
+    [key: string]: BrowserPoolInfo,
+}
+