Change responses typing

[Nazareka]

Bug Report

Description

change typing

from:

:type responses: dict[int or str, (drf_yasg.openapi.Schema or drf_yasg.openapi.SchemaRef or
        drf_yasg.openapi.Response or str or rest_framework.serializers.Serializer)]

to

:type responses: dict[int or str, (drf_yasg.openapi.Schema or drf_yasg.openapi.SchemaRef or
        drf_yasg.openapi.Response or str or rest_framework.serializers.Serializer or type[rest_framework.serializers.Serializer])]

to include also classes of rest_framework.serializers.Serializer

Is this a regression?

Yes, the previous version in which this bug was not present was: ...

Minimal Reproduction

Stack trace / Error message

Your Environment

[PaulWay]

Looks like a fairly easy fix there @nazareka - you could do this yourself and send a PR :-)