Method on_open

python/test_canvas.py:93–94

(self, ctx: CanvasProviderOpenRequest)

async def test_default_canvas_handler_on_action_raises_no_handler():
    class StubHandler(CanvasHandler):
        async def on_open(self, ctx: CanvasProviderOpenRequest) -> CanvasProviderOpenResult:
            return CanvasProviderOpenResult()

    handler = StubHandler()
    ctx = CanvasProviderInvokeActionRequest(