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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 dumps(self):
 """Turn the tabu object into a string in Latex format."""


        _s = super().dumps()

        # Tabu tables support a unusual syntax:
        # \begin{tabu} spread 0pt {<col format...>}
        #
        # Since this syntax isn't common, it doesn't make
        # sense to support it in the baseclass (e.g., Environment)
        # rather, here we fix the LaTeX string post-hoc
        if self._preamble:
            if _s.startswith(r"\begin{longtabu}"):
                _s = _s[:16] + self._preamble + _s[16:]
            elif _s.startswith(r"\begin{tabu}"):
                _s = _s[:12] + self._preamble + _s[12:]
            else:
                raise TableError("Can't apply preamble to Tabu table "
                                 "(unexpected initial command sequence)")

        return _s