Response model verification

validation.py

def validate(model, data):
    if not isinstance(model, dict):
        model = model.__dict__["__annotations__"]
    for k, v in model.items():
        assert k in data, f"Key {k} is not available in data provided"
        if 'typing.' in str(model[k]):
            types = model[k].__args__
            assert any(map(lambda x: isinstance(data[k], x), types)), f"Value of key {k}: {data[k]} is not of type(s) {types}"
        elif issubclass(v, BaseModel):
            validate(model[k], data[k])
        else:
            assert isinstance(data[k], model[k]), f"Value of key {k}: {data[k]} is not of type {model[k]} but of type {type(data[k])}"