def get(self):
        """Returns the current evaluation result.

        Returns
        -------
        names : list of str
           Name of the metrics.
        values : list of float
           Value of the evaluations.
        """
        names = []
        values = []
        for metric in self.metrics:
            name, value = metric.get()
            if isinstance(name, string_types):
                name = [name]
            if isinstance(value, numeric_types):
                value = [value]
            names.extend(name)
            values.extend(value)
        return (names, values)