     'verticalalignment': 'baseline',
                'horizontalalignment': loc}

        loc : {'center', 'left', 'right'}, default: :rc:`axes.titlelocation`
            Which title to set.

        y : float, default: :rc:`axes.titley`
            Vertical Axes location for the title (1.0 is the top).  If
            None (the default) and :rc:`axes.titley` is also None, y is
            determined automatically to avoid decorators on the Axes.

        pad : float, default: :rc:`axes.titlepad`
            The offset of the title from the top of the Axes, in points.

        Returns
        -------
        `.Text`
            The matplotlib text instance representing the title

        Other Parameters
        ----------------
        **kwargs : `.Text` properties
            Other keyword arguments are text properties, see `.Text` for a list
            of valid text properties.
        Nz