Prefer use statements over FQCNs in doc blocks

src/GridFS/StreamWrapper.php

@@ -19,6 +19,7 @@ namespace MongoDB\GridFS;
 
 use MongoDB\BSON\UTCDateTime;
 use Exception;
+use stdClass;
 
 /**
  * Stream wrapper for reading and writing a GridFS file.
@@ -41,7 +42,7 @@ class StreamWrapper
     /**
      * Return the stream's file document.
      *
-     * @return \stdClass
+     * @return stdClass
      */
     public function getFile()
     {

src/GridFS/WritableStream.php

@@ -22,6 +22,7 @@ use MongoDB\BSON\ObjectId;
 use MongoDB\BSON\UTCDateTime;
 use MongoDB\Driver\Exception\RuntimeException as DriverRuntimeException;
 use MongoDB\Exception\InvalidArgumentException;
+use stdClass;
 
 /**
  * WritableStream abstracts the process of writing a GridFS file.
@@ -141,7 +142,7 @@ class WritableStream
     /**
      * Return the stream's file document.
      *
-     * @return \stdClass
+     * @return stdClass
      */
     public function getFile()
     {

src/MapReduceResult.php

@@ -19,6 +19,7 @@ namespace MongoDB;
 
 use IteratorAggregate;
 use stdClass;
+use Traversable;
 
 /**
  * Result class for mapReduce command results.
@@ -77,7 +78,7 @@ class MapReduceResult implements IteratorAggregate
      * Return the mapReduce results as a Traversable.
      *
      * @see http://php.net/iteratoraggregate.getiterator
-     * @return \Traversable
+     * @return Traversable
      */
     public function getIterator()
     {

src/Operation/ChangeStream.php

@@ -18,6 +18,7 @@
 namespace MongoDB\Operation;
 
 use MongoDB\ChangeStream as ChangeStreamResult;
+use MongoDB\Driver\Command;
 use MongoDB\Driver\Manager;
 use MongoDB\Driver\ReadConcern;
 use MongoDB\Driver\ReadPreference;
@@ -165,7 +166,7 @@ class ChangeStream implements Executable
     /**
      * Create the aggregate pipeline with the changeStream command.
      *
-     * @return \MongoDB\Driver\Command
+     * @return Command
      */
     private function createCommand()
     {