I want to create functionality for a data class to be able to inherit 0..N mix-ins in Python whilst still returning the original data class object.

I have a preliminarily working solution, albeit very ugly and not very pythonic.

from typing import Any
from dataclasses import dataclass
 
@dataclass
class Customer:
    salary = 0
    monthlyBonus = 0
    latestClassification = ""
    
    
class SalaryMixin:
    def get_salary(self: Any) -> float:
        return self.salary
 
 
class customerInformationMixin:
    def get_latest_classification(self: Any) -> str:
        return self.latestClassification
    
def create_customer(*mixins: Type) -> Customer:
    customer = Customer()
    for mixin in mixins:
        mixin_methods = [func for func in dir(mixin) if callable(getattr(mixin, func)) and not func.startswith("__")]
        for method in mixin_methods:
            setattr(customer, method, getattr(mixin(), method))
    return customer

Ultimately I would like a function create_customer() that will accept any number of mix-ins and inherit its functionality.