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Hi, I'm trying to figure out how to parameterize a work flow where user can  select options from drop down in run screen while scheduling.

<https://docs.prefect.io/orchestration/getting-started/next-steps.html#parameters-mapped-tasks|This section> shows how Parameters can be used and overridden from the UI at runtime.

here is an example:
```from prefect import task, Flow, Parameter

@task(log_stdout=True)
def print_plus_one(x):
    print(x + 1)

with Flow('Parameterized Flow') as flow:
    x = Parameter('x', default = 2)
    print_plus_one(x=x)```
Once you register this flow, you can change the parameter value from 2 to something else at runtime in the UI

If you are in the Prefect UI, click the `Run` button and it lets you replace you parameters