Hi! I want to use from prefect.utilities.annotations.quote to speed up tasks that depend on large task outputs. How can I use this pattern together with task.submit() ? See example code below:

from prefect import task, flow
from prefect.utilities.annotations import quote

@task
def big_output():
    return [1 for _ in range(10**7)]

@task
def big_input(x):
    print(len(x))

@flow
def slow_flow():
    x = big_output.submit()
    big_input.submit(quote(x))

if __name__ == "__main__":
    slow_flow()

I'm trying to get the big_input task to start quickly after big_output task, but I get this error:

TypeError: object of type 'PrefectFuture' has no len()