whatsapp_web_groups/custom_import_layout/models/account_move.py

from odoo import api, fields, models

class AccountMoveLine(models.Model):
    _inherit = "account.move.line"

    import_name_taxes = fields.Char(string="Nombre Impuestos")

    @api.model_create_multi
    def create(self, vals_list):
        res = super().create(vals_list)
        for line in res:
            if not line.product_id:
                if line.import_name_taxes:
                    taxes = line.env["account.tax"].search([("name", "=", line.import_name_taxes), ("company_id", "=", line.company_id.id)])
                    if taxes:
                        line.tax_ids = False
                        line.write({'tax_ids': [(6, 0, taxes.ids)]})
                    else:
                        line.tax_ids = False
        return res