Fix type documentation for Count and Distinct $filter arg

src/Operation/Count.php

@@ -41,7 +41,7 @@ class Count implements Executable
      *
      * @param string       $databaseName   Database name
      * @param string       $collectionName Collection name
-     * @param array  $filter         Query by which to filter documents
+     * @param array|object $filter         Query by which to filter documents
      * @param array        $options        Command options
      * @throws InvalidArgumentException
      */

src/Operation/Distinct.php

@@ -35,7 +35,7 @@ class Distinct implements Executable
      * @param string       $databaseName   Database name
      * @param string       $collectionName Collection name
      * @param string       $fieldName      Field for which to return distinct values
-     * @param array  $filter         Query by which to filter documents
+     * @param array|object $filter         Query by which to filter documents
      * @param array        $options        Command options
      * @throws InvalidArgumentException
      */