human
I am working on the file "Closure a dekorator.ipynb".
The first task is:
Obalujuci dekorator prida nieco pred a/alebo za volanie funkcie
Can you write Python code for it?
assistant
#Here is the Python code you requested.

def obalujuci_dekorator(param_fct):
    def inner():
        before_call()
        result = param_fct()
        after_call()
        return result
    return inner