diff --git a/src/Collection.php b/src/Collection.php
index 3980e8d..ac1c09f 100644
--- a/src/Collection.php
+++ b/src/Collection.php
@@ -6,6 +6,9 @@
 use MongoDB\BSON\ObjectID;
 use MongoDB\Collection as MongoCollection;
 
+/**
+ * @mixin MongoCollection
+ */
 class Collection
 {
     /**
diff --git a/src/Connection.php b/src/Connection.php
index 3a3d235..2786420 100644
--- a/src/Connection.php
+++ b/src/Connection.php
@@ -12,6 +12,9 @@
 use MongoDB\Database;
 use Throwable;
 
+/**
+ * @mixin Database
+ */
 class Connection extends BaseConnection
 {
     use ManagesTransactions;
diff --git a/src/Eloquent/EmbedsRelations.php b/src/Eloquent/EmbedsRelations.php
index 9e5f77d..3c014f1 100644
--- a/src/Eloquent/EmbedsRelations.php
+++ b/src/Eloquent/EmbedsRelations.php
@@ -6,6 +6,9 @@
 use Jenssegers\Mongodb\Relations\EmbedsMany;
 use Jenssegers\Mongodb\Relations\EmbedsOne;
 
+/**
+ * Embeds relations for MongoDB models.
+ */
 trait EmbedsRelations
 {
     /**
diff --git a/src/Eloquent/HybridRelations.php b/src/Eloquent/HybridRelations.php
index 0818ca3..4613e50 100644
--- a/src/Eloquent/HybridRelations.php
+++ b/src/Eloquent/HybridRelations.php
@@ -12,6 +12,10 @@
 use Jenssegers\Mongodb\Relations\MorphMany;
 use Jenssegers\Mongodb\Relations\MorphTo;
 
+/**
+ * Cross-database relationships between SQL and MongoDB.
+ * Use this trait in SQL models to define relationships with MongoDB models.
+ */
 trait HybridRelations
 {
     /**