why i can't call function "_abc". Because "123" don't show in console line of Pycharm

This's my .py file

class scheduler_demo(models.Model):
    print("abc")
    _name = 'scheduler.demo'
    name = fields.Char(required=False)

    def _abc(self):
        print("123")

This's my XML file

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <data noupdate="0">
        <record id="ir_cron_scheduler_demo_action" model="ir.cron">
            <field name="name">Demo scheduler</field>
            <!--<field name="active" eval="True" />-->
            <!--<field name="user_id" ref="base.user_root"/>-->
            <field name="interval_number">1</field>
            <field name="interval_type">minutes</field>
            <field name="numbercall">-1</field>
            <field eval="True" name="doall"/>
            <field name="nextcall" eval="(datetime.utcnow() + timedelta(days=0)).strftime('%Y-%m-%d 14:08:00')" />
            <field name="doal">1</field>
            <!--<field name="model_id" ref="model_scheduler_demo"/>-->
            <field eval="'scheduler.demo'" name="model"/>
            <field eval="'_abc'" name="function"/>
            <field eval="'()'" name="args"/>
        </record>
   </data>
</odoo>