add annotations for thrown exceptions

src/UuidInterface.php

@@ -123,6 +123,8 @@ interface UuidInterface extends \JsonSerializable, \Serializable
      *
      * @return \DateTime A PHP DateTime representation of the date
      * @throws UnsupportedOperationException If this UUID is not a version 1 UUID
+     * @throws \Ramsey\Uuid\Exception\UnsatisfiedDependencyException if called in a 32-bit system and
+     *     `Moontoast\Math\BigNumber` is not present
      */
     public function getDateTime();
 
@@ -131,6 +133,7 @@ interface UuidInterface extends \JsonSerializable, \Serializable
      * representation.
      *
      * @return mixed Converted representation of the unsigned 128-bit integer value
+     * @throws \Ramsey\Uuid\Exception\UnsatisfiedDependencyException if `Moontoast\Math\BigNumber` is not present
      */
     public function getInteger();