<action>
    <field name="string">Period Line</field>
    <field name="view_cls">multi_view</field>
    <field name="model">clinic.period.line</field>
    <field name="menu">account_menu</field>
    <field name="tabs">[
        ["All",[]],
        ["Open",[["state","=","open"]]],
        ["Close",[["state","=","close"]]]
        ]</field>
</action>