可以在pyqtgraph中调整句柄的大小吗？

import pyqtgraph as pg
from pyqtgraph.Qt import QtGui, QtCore

app = QtGui.QApplication([])

# 创建一个GraphicsView和GraphicsScene
view = pg.GraphicsView()
scene = pg.GraphicsScene()
view.setScene(scene)

# 创建一个矩形图形项
rect = pg.QtGui.QGraphicsRectItem(0, 0, 100, 100)
rect.setFlag(pg.QtCore.Qt.ItemIsMovable)  # 允许拖动
scene.addItem(rect)

# 创建一个句柄图形项
handle = pg.GraphicsHandleItem(rect)
handle.setHandleSize(10)  # 设置句柄大小
handle.setPen(pg.mkPen('r'))  # 设置句柄颜色
scene.addItem(handle)

view.show()
app.exec_()