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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 slice( self, serie_node, node, radius, small_radius, angle, start_angle, center, val, i, metadata ):
 """Draw a pie slice"""

        if angle == 2 * pi:
            angle = nearly_2pi

        if angle > 0:
            to = [
                coord_abs_project(center, radius, start_angle),
                coord_abs_project(center, radius, start_angle + angle),
                coord_abs_project(center, small_radius, start_angle + angle),
                coord_abs_project(center, small_radius, start_angle)
            ]
            rv = self.node(
                node,
                'path',
                d='M%s A%s 0 %d 1 %s L%s A%s 0 %d 0 %s z' % (
                    to[0], coord_dual(radius), int(angle > pi), to[1], to[2],
                    coord_dual(small_radius), int(angle > pi), to[3]
                ),
                class_='slice reactive tooltip-trigger'
            )
        else:
            rv = None
        x, y = coord_diff(
            center,
            coord_project((radius + small_radius) / 2, start_angle + angle / 2)
        )

        self.graph._tooltip_data(
            node, val, x, y, "centered", self.graph._x_labels
            and self.graph._x_labels[i][0]
        )
        if angle >= 0.3:  # 0.3 radians is about 17 degrees
            self.graph._static_value(serie_node, val, x, y, metadata)
        return rv