QPaintEngineState.penNeedsResolving () requires an argument

import os
import PySide2
from PySide2 import QtWidgets , QtGui
import sys
dirname  =  os.path.dirname(PySide2.__file__)
plugin_path  =  os.path.join(dirname, 'plugins', 'platforms')
os.environ['QT_QPA_PLATFORM_PLUGIN_PATH']  =  plugin_path
def main():
    
    if QtWidgets.QApplication.instance() is None:
        app = QtWidgets.QApplication([])
    else:
        app = QtWidgets.QApplication.instance()
   
    print(QtGui.QPaintEngineState.penNeedsResolving())     
    sys.exit(app.exec_())
if __name__ ==  "__main__":
    main()

 
this error occurs.

TypeError: descriptor 'penNeedsResolving' of 'PySide2.QtGui.QPaintEngineState' object needs an Argument

and, the same error occurs. in the case of brushNeedsResolving.

According to API documentation, they don't require any argument.

Cite of API:

PySide.QtGui.QPaintEngineState.brushNeedsResolving()¶

Returns whether the coordinate of the fill have been specified as bounded by the current rendering operation and have to be resolved (about the currently rendered primitive).

PySide.QtGui.QPaintEngineState.penNeedsResolving()¶

Returns whether the coordinate of the stroke have been specified as bounded by the current rendering operation and have to be resolved (about the currently rendered primitive).

Oh, my fault.

I should have made an instance at the first time.

state = QtGui.QPaintEngineState()
pen = state.penNeedsResolving()
print(pen)

but, nothing Returns.

I have carelessly repored without error.