Change default value for Activity.meta so it's easier to manipulate it in the decider
Change default value for Activity.meta so it's easier to manipulate it in the decider

With this, we can have meta parameters assigned like that directly:

    @activity.with_attributes(task_list="foo")
    def foo():
       pass

    class MyWorkflow(Workflow):
        def run(self):
            foo.meta["a_key"] = "a_value"
            self.submit(foo)

botify-labs/simpleflow,botify-labs/simpleflow