QCloudSMHPutDirectoryRequest *req = [QCloudSMHPutDirectoryRequest new];
req.dirPath = @"dirname";
// Media Library ID, required parameter
req.libraryId = @"libraryId";
// Space ID, if the media library is in single-tenant mode, this parameter is fixed as a hyphen (-); if the media library is in multi-tenant mode, you must specify this parameter
req.spaceId = @"spaceId";

[req setFinishBlock:^(QCloudSMHContentInfo *contentInfo, NSError *_Nullable error) {

}];
[[QCloudSMHService defaultSMHService] putDirectory:req];