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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 what_task(self, token_id, presented_pronunciation, index, phonemes, phonemes_probability, warn=True, default=True):
 """Provide the prediction of the what task. This function is used to predict the probability of a given phoneme being reported at a given index for a given token. :param token_id: The token for which the prediction is provided :param index: The index of the token for which the prediction is provided :param phonemes: The phoneme or phoneme sequence for which the prediction is being made (as a space separated string) :param phonemes_probability: The probability of the phoneme or phoneme sequence :param warn: Set to False in order to avoid warnings about 0 or 1 probabilities :param default: Set to False in order to avoid generating the default probabilities """


        if phonemes_probability is not None and not 0. < phonemes_probability < 1. and warn:
            logging.warning('Setting a probability of [{}] to phonemes [{}] for token [{}].\n '
                            'Using probabilities of 0.0 or 1.0 '
                            'may lead to likelihoods of -Infinity'.format(phonemes_probability,
                                                                          phonemes,
                                                                          token_id))

        default_preds = self._what_default(presented_pronunciation) if default else {}

        self['tokens'].setdefault(token_id, {}) \
            .setdefault('what', default_preds)

        if index is not None:
            self['tokens'][token_id]['what'].setdefault(str(index), {})

        if phonemes is not None:
            if phonemes_probability is not None and index is not None:
                self['tokens'][token_id]['what'][str(index)][phonemes] = phonemes_probability

            else:
                if index is not None:
                    if phonemes in default_preds[str(index)]:
                        self['tokens'][token_id]['what'][str(index)][phonemes] = default_preds[str(index)][phonemes]
                    else:
                        self['tokens'][token_id]['what'][str(index)].pop(phonemes)

                else:
                    if str(index) in default_preds:
                        self['tokens'][token_id]['what'][str(index)] = default_preds[str(index)]
                    else:
                        self['tokens'][token_id]['what'].pop(str(index))