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hi guys when i do
```def container(p):
    return CreateContainer(image_name="image", command=f"--p={p}")

start = StartContainer()

with Flow("flow") as flow:
    p = Parameter('param', required=True)

    c = container(p)
    start_container = start(container_id=c)```
i get `&lt;Parameter: p&gt;` interpolated for `p` instead of the actual value for p

but if i make `container` a `@task` it also gives weird errors i think because `CreateContainer` is itself already a task?

i am just trying to do <https://docs.prefect.io/core/examples/functional_docker.html#docker-pipeline-functional-api>

this seems to require dependent tasks as `CreateContainer` depends on the output of `Parameter`

which seems a little overkill given that i simply want to parametrise my flows, not perform any sophisticated dynamic DAG shenanigans

ok it works when i define `start` instead like this
```@task
def start(i):
     return StartContainer(container_id=i)```
and add `@task` to `container` also

works, but feels like i’m jumping hoops or working against the grain of prefect somehow

no actually it doesn’t work
```Unexpected error: ValueError('Could not infer an active Flow context.')
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/site-packages/prefect/engine/runner.py", line 48, in inner
    new_state = method(self, state, *args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/prefect/engine/task_runner.py", line 822, in get_task_run_state
    value = timeout_handler(
  File "/usr/local/lib/python3.8/site-packages/prefect/utilities/executors.py", line 188, in timeout_handler
    return fn(*args, **kwargs)
  File "crdf.py", line 65, in start
  File "/usr/local/lib/python3.8/site-packages/prefect/core/task.py", line 475, in __call__
    new.bind(
  File "/usr/local/lib/python3.8/site-packages/prefect/core/task.py", line 528, in bind
    raise ValueError("Could not infer an active Flow context.")
ValueError: Could not infer an active Flow context.```
because it should have been `StartContainer()(container_id=i)`