human
Solve the following python programming problem given the following code:
def provider_for_flask(app, url, provider) : 
    from flask import request 
    def provider_view() : 
        def get_header(key, default) : 
            return request.headers.get (key, default) 
method = request.method 
        signed_data = request.data 
        (status_code, data) = provider.get_response (method, signed_data, get_header) 
        return (data, status_code) 
return app.route (url, methods = ['POST']) (provider) 

    
    

    Fix the buggy line: return app.route (url, methods = ['POST']) (provider)
assistant
#Here is Python code to fix the buggy line: return app.

return app.route (url, methods = ['POST']) (def provider_view()