diff --git a/src/Base/Getter.php b/src/Base/Getter.php
index 163efe7..1eeb178 100644
--- a/src/Base/Getter.php
+++ b/src/Base/Getter.php
@@ -21,10 +21,10 @@ class Getter
 
 	/**
 	 * @param $class
-	 * @param $name
-	 * @return mixed|null
+	 * @param null $name
+	 * @return array|string|null
 	 */
-	public function getGetter($class, $name = null): ?string
+	public function getGetter($class, $name = null): null|array|string
 	{
 		if (!empty($name)) {
 			return $this->_classMapping[$class][$name] ?? null;
diff --git a/src/Base/Relate.php b/src/Base/Relate.php
index ae45b32..b485680 100644
--- a/src/Base/Relate.php
+++ b/src/Base/Relate.php
@@ -22,9 +22,9 @@ class Relate
 	/**
 	 * @param $class
 	 * @param $name
-	 * @return mixed|null
+	 * @return null|array|string
 	 */
-	public function getRelate($class, $name = null): ?string
+	public function getRelate($class, $name = null): null|array|string
 	{
 		if (!empty($name)) {
 			return $this->_classMapping[$class][$name] ?? null;
diff --git a/src/Base/Setter.php b/src/Base/Setter.php
index 7df0ed2..dce87f7 100644
--- a/src/Base/Setter.php
+++ b/src/Base/Setter.php
@@ -22,9 +22,9 @@ class Setter
 	/**
 	 * @param $class
 	 * @param $name
-	 * @return mixed|null
+	 * @return null|array|string
 	 */
-	public function getSetter($class, $name): ?string
+	public function getSetter($class, $name): null|array|string
 	{
 		return $this->_classMapping[$class][$name] ?? null;
 	}