Reorder the functions

Author: Vectorial1024

src/OpenLocationCode.php

@@ -253,6 +253,11 @@ public function decode(): CodeArea
         );
     }
 
+    public function __toString(): string
+    {
+        return $this->code;
+    }
+
     /**
      * Returns short Open Location Code from the full Open Location Code created by removing four or six digits,
      * depending on the provided reference poi9nt. It removes as many digits as possible.
@@ -447,11 +452,6 @@ public static function isValidCode(?string $code): bool
         return true;
     }
 
-    public function __toString(): string
-    {
-        return $this->code;
-    }
-
     /**
      * Returns whether this Open Location code is valid.
      * @return bool True if it is a valid full or short code.