How to use the regions.core.BoundingBox.from_float function in regions

def bounding_box(self):
        xmin = self.vertices.x.min()
        xmax = self.vertices.x.max()
        ymin = self.vertices.y.min()
        ymax = self.vertices.y.max()
        return BoundingBox.from_float(xmin, xmax, ymin, ymax)

def bounding_box(self):
        """Bounding box (`~regions.BoundingBox`)."""
        xmin = self.center.x - self.radius
        xmax = self.center.x + self.radius
        ymin = self.center.y - self.radius
        ymax = self.center.y + self.radius

        return BoundingBox.from_float(xmin, xmax, ymin, ymax)

def bounding_box(self):
        return BoundingBox.from_float(self.center.x, self.center.x,
                                      self.center.y, self.center.y)

h2 = self.height / 2.
        cos_angle = np.cos(self.angle)  # self.angle is a Quantity
        sin_angle = np.sin(self.angle)  # self.angle is a Quantity
        dx1 = abs(w2 * cos_angle - h2 * sin_angle)
        dy1 = abs(w2 * sin_angle + h2 * cos_angle)
        dx2 = abs(w2 * cos_angle + h2 * sin_angle)
        dy2 = abs(w2 * sin_angle - h2 * cos_angle)
        dx = max(dx1, dx2)
        dy = max(dy1, dy2)

        xmin = self.center.x - dx
        xmax = self.center.x + dx
        ymin = self.center.y - dy
        ymax = self.center.y + dy

        return BoundingBox.from_float(xmin, xmax, ymin, ymax)

def bounding_box(self):
        """Bounding box (`~regions.BoundingBox`)."""
        xmin = min(self.start.x, self.end.x)
        xmax = max(self.start.x, self.end.x)
        ymin = min(self.start.y, self.end.y)
        ymax = max(self.start.y, self.end.y)

        return BoundingBox.from_float(xmin, xmax, ymin, ymax)

t1 = np.arctan(self.height / tan_angle / self.width)
        t2 = t1 + np.pi * u.rad

        dy1 = 0.5 * self.height * cos_angle * np.sin(t1) + 0.5 * self.width * sin_angle * np.cos(t1)
        dy2 = 0.5 * self.height * cos_angle * np.sin(t2) + 0.5 * self.width * sin_angle * np.cos(t2)

        if dy1 > dy2:
            dy1, dy2 = dy2, dy1

        xmin = self.center.x + dx1
        xmax = self.center.x + dx2
        ymin = self.center.y + dy1
        ymax = self.center.y + dy2

        return BoundingBox.from_float(xmin, xmax, ymin, ymax)