How to use the vpython.label function in vpython

# Far away = smaller text, closer = larger text (up to a min (20) and max (40))
    # Typically 5->20 units away
    # (eqn and limits modified to suit display better) = -1.3333 * distance_from_center + 46.6667
    label_height = -1.3333 * distance_from_center + 36.6667  # Calculate label height
    label_height = max(min(label_height, 35), 10)  # Limit to 10->35
    label_xoffset = 0
    label_yoffset = 0
    label_space = 0
    label_font = 'serif'
    label_text_colour = color.black
    label_line_color = color.white
    label_bg_opacity = 0
    label_linewidth = 0.1

    the_label = label(
        canvas=scene,
        pos=label_position,
        text=label_text,
        height=label_height,
        xoffset=label_xoffset,
        yoffset=label_yoffset,
        space=label_space,
        font=label_font,
        color=label_text_colour,
        linecolor=label_line_color,
        opacity=label_bg_opacity,
        linewidth=label_linewidth
    )

    return the_label

def setlabel(self, txt, visible=None):
                if self.label is not None:
                    if visible is None:
                        visible = self.label.visible
                    self.label.visible = 0
                elif visible is None:
                    visible = 0
                self.label = vpython.label(text=txt, pos=self.pos, space=self.radius, xoffset=10, yoffset=20, visible=visible)  # noqa: E501

def setlabel(self, txt, visible=None):
                if self.label is not None:
                    if visible is None:
                        visible = self.label.visible
                    self.label.visible = 0
                elif visible is None:
                    visible = 0
                self.label = vpython.label(text=txt, pos=self.pos, space=self.radius, xoffset=10, yoffset=20, visible=visible)  # noqa: E501

:param scene: The scene in which to draw the object
    :type scene: class:`vpython.canvas`
    :return: The created label object.
    :rtype: class:`vpython.label`
    """

    # Custom settings for the label
    label_height = 10
    label_xoffset = 0
    label_yoffset = 50
    label_space = 20
    label_font = 'serif'
    label_text_colour = color.black
    label_line_color = color.black

    the_label = label(
        canvas=scene,
        pos=label_position,
        text=label_text,
        height=label_height,
        xoffset=label_xoffset,
        yoffset=label_yoffset,
        space=label_space,
        font=label_font,
        color=label_text_colour,
        linecolor=label_line_color
    )

    return the_label