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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def check_usrmove(self, pkgs):
 """Test whether the running system implements UsrMove. If the 'filesystem' package is present, it will check that the version is greater than 3. If the package is not present the '/bin' and '/sbin' paths are checked and UsrMove is assumed if both are symbolic links. :param pkgs: a packages dictionary """

        if 'filesystem' not in pkgs:
            return os.path.islink('/bin') and os.path.islink('/sbin')
        else:
            filesys_version = pkgs['filesystem']['version']
            return True if filesys_version[0] == '3' else False