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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def libvlc_log_set_file(p_instance, stream):
    '''Sets up logging to a file.
    @param p_instance: libvlc instance.
    @param stream: FILE pointer opened for writing (the FILE pointer must remain valid until L{libvlc_log_unset}()).
    @version: LibVLC 2.1.0 or later.
    '''
    f = _Cfunctions.get('libvlc_log_set_file', None) or \
        _Cfunction('libvlc_log_set_file', ((1,), (1,),), None,
                    None, Instance, FILE_ptr)
    return f(p_instance, stream)