def change_username(old_username, new_username):
    _xml = """<RIBCL VERSION="2.0">
                <LOGIN USER_LOGIN="adminname" PASSWORD="password">
                  <USER_INFO MODE="write">
                    <MOD_USER USER_LOGIN="{0}">
                      <USER_NAME value="{1}"/>
                      <USER_LOGIN value="{1}"/>
                    </MOD_USER>
                  </USER_INFO>
                </LOGIN>
              </RIBCL>""".format(old_username, new_username)

    return __execute_cmd('Change_username', _xml)
Yields the Javascript lines that declare the given  :class:`Variable` `v`.
dataset/ETHPy150Open saltstack/salt/salt/modules/ilo.py/change_username--crossover with--dataset/ETHPy150Open lsaffre/lino/lino/utils/jsgen.py/declare_vars