'Usage: meta <remotepath> [format] - get information of the given path (dir / file) at Baidu Yun.
remotepath - the remote path
format - specifies how the list are displayed
it supports all the format variables in the \'list\' command, and additionally the followings:
$i - fs_id
$b - MD5 block_list
$u - Has sub directory or not'

def meta(self, remotepath=u'/', fmt=u'$t    $u    $f    $s    $c    $m    $i    $b'):

    rpath = get_pcs_path(remotepath)
    return self.__meta(rpath, fmt)
