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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 colorbar(self, cmap, position="right", label="", clim=("", ""), border_width=0.0, border_color="black", **kwargs):
 """Show a ColorBar Parameters cmap : str | vispy.color.ColorMap Either the name of the ColorMap to be used from the standard set of names (refer to `vispy.color.get_colormap`), or a custom ColorMap object. The ColorMap is used to apply a gradient on the colorbar. position : {'left', 'right', 'top', 'bottom'} The position of the colorbar with respect to the plot. 'top' and 'bottom' are placed horizontally, while 'left' and 'right' are placed vertically label : str The label that is to be drawn with the colorbar that provides information about the colorbar. clim : tuple (min, max) the minimum and maximum values of the data that is given to the colorbar. This is used to draw the scale on the side of the colorbar. border_width : float (in px) The width of the border the colormap should have. This measurement is given in pixels border_color : str | vispy.color.Color The color of the border of the colormap. This can either be a str as the color's name or an actual instace of a vipy.color.Color Returns ------- colorbar : instance of ColorBarWidget See also -------- ColorBarWidget """


        self._configure_2d()

        cbar = scene.ColorBarWidget(orientation=position,
                                    label_str=label,
                                    cmap=cmap,
                                    clim=clim,
                                    border_width=border_width,
                                    border_color=border_color,
                                    **kwargs)

        CBAR_LONG_DIM = 50

        if cbar.orientation == "bottom":
            self.grid.remove_widget(self.cbar_bottom)
            self.cbar_bottom = self.grid.add_widget(cbar, row=5, col=4)
            self.cbar_bottom.height_max = \
                self.cbar_bottom.height_max = CBAR_LONG_DIM

        elif cbar.orientation == "top":
            self.grid.remove_widget(self.cbar_top)
            self.cbar_top = self.grid.add_widget(cbar, row=1, col=4)
            self.cbar_top.height_max = self.cbar_top.height_max = CBAR_LONG_DIM

        elif cbar.orientation == "left":
            self.grid.remove_widget(self.cbar_left)
            self.cbar_left = self.grid.add_widget(cbar, row=2, col=1)
            self.cbar_left.width_max = self.cbar_left.width_min = CBAR_LONG_DIM

        else:  # cbar.orientation == "right"
            self.grid.remove_widget(self.cbar_right)
            self.cbar_right = self.grid.add_widget(cbar, row=2, col=5)
            self.cbar_right.width_max = \
                self.cbar_right.width_min = CBAR_LONG_DIM

        return cbar