- Added multiple parameters on SearchParameter

src/SearchRequest/Attribute/SearchParameter.php

@@ -17,4 +17,9 @@ abstract class SearchParameter {
     {
         return is_array($this->source) ? $this->source : [ $this->source ];
     }
+
+    public function getParameters() : array
+    {
+        return array_filter((array) $this->parameter);
+    }
 }