如何通过Odoo10向导中的自定义方法从Many2many字段中删除数据？

class CustomWizard(models.TransientModel):
    _name = 'custom.wizard'

    @api.multi
    def remove_data(self):
        # 获取当前向导的记录
        record = self.env['your.model'].browse(self._context.get('active_id'))
        
        # 从Many2many字段中删除数据
        record.many2many_field -= self.env['your.model'].browse(self._context.get('active_ids'))

<record id="custom_wizard_view" model="ir.ui.view">
    <field name="name">custom.wizard.view.form</field>
    <field name="model">custom.wizard</field>
    <field name="arch" type="xml">
        <form>
            <header>
                <button name="remove_data" string="Remove Data" type="object" class="oe_highlight"/>
            </header>
        </form>
    </field>
</record>

<record id="custom_wizard_action" model="ir.actions.act_window">
    <field name="name">Custom Wizard</field>
    <field name="res_model">custom.wizard</field>
    <field name="view_mode">form</field>
    <field name="target">new</field>
</record>

<menuitem id="custom_wizard_menu" name="Custom Wizard" action="custom_wizard_action"/>