Ability to support and validate other input formats / content types such as application/bson

[iongion]

I have added support for application/bson in my flask application, alongside application/json
This format is almost like json, with support for binary data, aside from text.

A simple support in flask is to do this:

@app.before_request
def setup_request():
    if request.content_type and request.content_type.startswith("application/bson"):
        request.is_bson = True
        request.bson = None
        try:
            if request.data is not None:
                request.bson = BSON(request.data).decode()
        except Exception as ex:
            logger.error(ex, "Unable to decode BSON request data")

I want to use the same built-in validation as for application/json that flask-openapi3 supports, the only way I was able to find to make it work is by doing this:

from flask_openapi3 import request as flask_openapi3_request

def _validate_body(body: type[BaseModel], func_kwargs: dict):
    obj = None
    if request.is_json:
        obj = request.get_json(silent=True)
    elif request.is_bson:
        obj = request.bson
    if isinstance(obj, str):
        body_model = body.model_validate_json(json_data=obj)
    else:
        body_model = body.model_validate(obj=obj)
    func_kwargs["body"] = body_model


# Patching body validation as only json is supported by default
flask_openapi3_request._validate_body = _validate_body

Is there a more elegant, future proof way instead of patching the private api ?
Also, thank you for the great implementation you have in this project.