]
);
-Maasha::Common::error( qq(Directory already exists: "$options->{ 'directory' }") ) if -d $options->{ 'directory' };
-
Maasha::Filesys::dir_create_if_not_exists( $options->{ 'directory' } );
$in = Maasha::Biopieces::read_stream( $options->{ "stream_in" } );