在QTreeView中找不到鼠标悬停事件的事件或信号名称

from PyQt5.QtWidgets import QTreeView, QApplication
from PyQt5.QtCore import QModelIndex

class CustomTreeView(QTreeView):
    def __init__(self, parent=None):
        super().__init__(parent)

    def mouseMoveEvent(self, event):
        index = self.indexAt(event.pos())
        if index.isValid():
            # 执行鼠标悬停的操作，例如改变背景颜色或显示提示信息
            # ...

        super().mouseMoveEvent(event)

if __name__ == "__main__":
    import sys
    app = QApplication(sys.argv)
    treeView = CustomTreeView()
    # 设置你的数据模型和其他属性
    # ...
    treeView.show()
    sys.exit(app.exec_())