TypeError: __init__() got an unexpected keyword argument 'min_length'

[borisowww]

Description

When trying to validate a File parameter in flask, I get an error TypeError: __init__() got an unexpected keyword argument 'min_length'.

Basic setup

@app.route('/route', methods=["POST"])
@ValidateParameters()
def method(
        image: Any = File(),
        height: str = Form()
):
    return "Success", 200

Fix

My fix basically provides the min_length and max_length arguments to the File class, so they can be used in the validate method.

Additionally, the correct type for Files should be werkzeug.datastructures.FileStorage, otherwise some validations don't get triggered, due to

        # Skip validation if typing.Any is given
        if expected_input_type_str.startswith("typing.Any"):
            return user_input

so I updated the README with the suggested file type.

[Ge0rg3]

Thanks @borisowww, nicely spotted, much appreciated 👍