def __str__(self):
return '<STR_LIT>'.format(<EOL>self._tp, self._tn, self._fp, self._fn<EOL>)<EOL>
Cast to str.

        Returns
        -------
        str
            A human-readable version of the confusion table

        Example
        -------
        >>> ct = ConfusionTable(120, 60, 20, 30)
        >>> str(ct)
        'tp:120, tn:60, fp:20, fn:30'