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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 get_value(self, series, key):
 """Adapted from pandas.tseries.index.DatetimeIndex.get_value"""

        if np.asarray(key).dtype == np.dtype(bool):
            return series.iloc[key]
        elif isinstance(key, slice):
            return series.iloc[self.slice_indexer(
                key.start, key.stop, key.step)]
        else:
            return series.iloc[self.get_loc(key)]