Invalid estimation procedure ids  #1249

Description

On https://www.openml.org/search?type=measure&measure_type=estimation_procedure I can see the different estimation procedure ids. When creating a new task on the test server as follows

test_task = openml.tasks.create_task(
        task_type=TaskType.SUPERVISED_CLASSIFICATION,
        dataset_id=128,
        target_name="class",
        evaluation_measure="predictive_accuracy",
        estimation_procedure_id=11,
    )

with for example estimation_procedure_id=11 which according to the list corresponds to '10% Holdout set', the following error is thrown:

OpenMLServerException: https://test.openml.org/api/v1/xml/task/ returned code 622: 
Input value does not match allowed values in foreign column. - 
problematic input: [estimation_procedure], acceptable inputs: [1, 2, 3, 4, 5, 6, 16, 23, 25, 26, 28]

If instead I use for example estimation_procedure_id=25, I receive the error as described in openml/OpenML#1190. My used version are the same as mentioned in openml/OpenML#1190.

Improvement of docs

I think it would be great to show the list of possible estimation procedures in a tutorial somewhere. I noticed that such a list exists from the comment mentioned in https://openml.github.io/openml-python/develop/examples/30_extended/task_manual_iteration_tutorial.html but I only by chance noticed that I need to click on 'Show list' to see the procedure ids. Would also be great to be able to query that information via the API.

Is it also possible to manually create new estimation procedures?

Thanks!