Calling `pulumi.export` from within an `apply`

__main__.py

from some_module import make_bucket

# Call a function to make a bucket.
make_bucket()

some_module.py

import pulumi
from pulumi_aws import s3

def make_bucket():
    bucket = s3.Bucket("my-bucket")

    # This won't work:
    bucket.id.apply(lambda id: pulumi.export("foo", f"{id}-foo"))

    # But this will:
    bar = bucket.id.apply(lambda id: f"{id}-bar")
    pulumi.export("bar", bar)