[Python] how to do requestAnimationFrame in pyscript

from pyscript import document, window
from pyscript.ffi import create_proxy

class Canvas:
def __init__(self, id, width=64*9, height=64*9):
self.canvas = document.querySelector(id)
self.ctx = self.canvas.getContext('2d')
self.canvas.height = height
self.canvas.width = width
self.y = 100
self.set_bg_color('black')
self.animation()

def clear(self, color='black', pos=(0,0), size=None):
x,y = pos
if size:
width, height = size
else:
width, height = (self.canvas.width, self.canvas.height)
self.ctx.fillStyle = color
self.ctx.clearRect(x,y,width,height)

def set_bg_color(self, color):

self.ctx.fillStyle = color
self.ctx.fillRect(0, 0, self.canvas.width, self.canvas.height)


def animation(self):
self.ctx.fillStyle = 'red'
self.ctx.fillRect(100, self.y, 100, 100)
self.y += 1
self.clear()
proxy = create_proxy(self.animation)
window.requestAnimationFrame(proxy)


I get this error in pyscript

Uncaught PythonError: TypeError: Canvas.animation() takes 1 positional argument but 2 were given

I tried passing an event=None just in case but the canvas doesn't come up but no error

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