How could I inherit from this class, I need to override some methods.

from .dhl_request import DHLProvider

from odoo.tools.zeep.helpers import serialize_object

from odoo import api, models, fields, _

from odoo.exceptions import UserError

from odoo.tools import float_repr

from odoo.tools.safe_eval import const_eval

class Providerdhl(models.Model):

    _inherit = 'delivery.carrier'

    def dhl_send_shipping(self, pickings):

I tried this.

from .dhl_request import CustomDHLProviderfrom odoo import models, fields, _

class Providerdhl(models.Model): 

    _inherit = 'provider.dhl'

    def dhl_send_shipping(self, pickings):

but since it is not a model I cannot inherit with _inherit