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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_wbfmt_format_txt(self, data_nt):
 """Return format for text cell from namedtuple field, 'format_txt'."""

        format_txt_val = getattr(data_nt, "format_txt")
        if format_txt_val == 1:
            return self.fmtname2wbfmtobj.get("very light grey")
        if format_txt_val == 2:
            return self.fmtname2wbfmtobj.get("light grey")
        return self.fmtname2wbfmtobj.get(format_txt_val)