js2py.internals.simplex.JsException: TypeError: 'undefined' is not a function

[Smawexi]

Traceback (most recent call last):
File "D:\Study\Homework\py\scrape\hm\guojiayaojianju.py", line 46, in
print(context.get_request_payload())
File "D:\fsy\Anaconda3\lib\site-packages\js2py\base.py", line 1203, in call
return to_python(parent.obj.callprop(meth, *args))
File "D:\fsy\Anaconda3\lib\site-packages\js2py\base.py", line 996, in callprop
return cand.call(self, args)
File "D:\fsy\Anaconda3\lib\site-packages\js2py\base.py", line 1464, in call
return Js(self.code(*args))
File "", line 151, in PyJsHoisted_get_request_payload
File "D:\fsy\Anaconda3\lib\site-packages\js2py\base.py", line 949, in call
return self.call(self.GlobalObject, args)
File "D:\fsy\Anaconda3\lib\site-packages\js2py\base.py", line 1464, in call
return Js(self.code(*args))
File "", line 71, in PyJsHoisted_get_encData_
File "D:\fsy\Anaconda3\lib\site-packages\js2py\base.py", line 949, in call
return self.call(self.GlobalObject, args)
File "D:\fsy\Anaconda3\lib\site-packages\js2py\base.py", line 1464, in call
return Js(self.code(*args))
File "", line 49, in PyJsHoisted_b_
File "D:\fsy\Anaconda3\lib\site-packages\js2py\base.py", line 949, in call
return self.call(self.GlobalObject, args)
File "D:\fsy\Anaconda3\lib\site-packages\js2py\base.py", line 1464, in call
return Js(self.code(*args))
File "", line 57, in PyJsHoisted_y_
File "D:\fsy\Anaconda3\lib\site-packages\js2py\base.py", line 993, in callprop
raise MakeError('TypeError',
js2py.internals.simplex.JsException: TypeError: 'undefined' is not a function (tried calling property 'fill' of 'Array')

An error occurred when I called the given function in ‘context’. The local node environment is OK