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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 _try_redeem_disposable_app(file, client):
 """ Attempt to redeem a one time code registred on the client. """

    redeemedClient = client.redeem_onetime_code(None)
    if redeemedClient is None:
        return None
    else:
        return _BlotreDisposableApp(file,
            redeemedClient.client,
            creds = redeemedClient.creds,
            config = redeemedClient.config)