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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 set_value(self, index, col, value, takeable=False):
 """ Put single value at passed column and index. .. deprecated:: 0.21.0 Use .at[] or .iat[] accessors instead. Parameters index : row label col : column label value : scalar takeable : interpret the index/col as indexers, default False Returns ------- DataFrame If label pair is contained, will be reference to calling DataFrame, otherwise a new object. """

        warnings.warn("set_value is deprecated and will be removed "
                      "in a future release. Please use "
                      ".at[] or .iat[] accessors instead", FutureWarning,
                      stacklevel=2)
        return self._set_value(index, col, value, takeable=takeable)