Corrections signature méthodes

src/EnvReader/TMultiLevelProperties.php

@@ -50,7 +50,7 @@ trait TMultiLevelProperties {
      *
      * @throws UnexpectedValueException If property is not set AND $default is Null
      */
-    public function getProperty ($name, mixed $default = null) {
+    public function getProperty ($name, mixed $default = null): mixed {
         if (!$this->hasProperty($name)) {
             if ($default === null) {
                 throw new UnexpectedValueException('The "' . $name . '" property is not set');
@@ -86,11 +86,11 @@ trait TMultiLevelProperties {
     /**
      * Get array of levels of a property name
      *
-     * @param string|string[]|IArrayCast $propertyName The property name
+     * @param string|IArrayCast|string[] $propertyName The property name
      *
      * @return InsensitiveCaseKeyImmutableCollection The property levels
      */
-    private function getPropertyLevels ($propertyName): InsensitiveCaseKeyImmutableCollection {
+    private function getPropertyLevels (array|IArrayCast|string $propertyName): InsensitiveCaseKeyImmutableCollection {
         if ($propertyName instanceof IArrayCast) {
             $parts = $propertyName->toArray();
         }

src/EnvReader/XmlStructure/IXmlStructure.php

@@ -15,5 +15,5 @@ interface IXmlStructure {
      *
      * @return mixed The extracted value
      */
-    public function parseXml (SimpleXMLElement $xmlNode);
+    public function parseXml (SimpleXMLElement $xmlNode): mixed;
 }

src/EnvReader/XmlStructure/TAttributeListXmlStructure.php

@@ -21,7 +21,7 @@ trait TAttributeListXmlStructure {
      *
      * @return $this
      */
-    public function setAttributesStructure (?AttributesXmlStructure $attributesStructure = null): self {
+    public function setAttributesStructure (?AttributesXmlStructure $attributesStructure = null): static {
         $this->attributesStructure = $attributesStructure;
         return $this;
     }