Queryables not showing possible values for a given parameter

[amarandon]

In the Copernicus Atmosphere tutorial, there is an example about queryables which shows that we should be able to see possible values for a given parameter:

>>> queryables = dag.list_queryables(provider="cop_ads", productType="CAMS_EAC4")
>>> queryables["variable"]
typing.Annotated[typing.Literal['10m_u_component_of_wind', '10m_v_component_of_wind', '2m_dewpoint_temperature', '2m_temperature', 'acetone', 'acetone_product', 'aldehydes', 'amine', 'ammonia', 'ammonium', [...], 'vertically_integrated_mass_of_sea_salt_aerosol_5-20um', 'vertically_integrated_mass_of_sulphate_aerosol'], FieldInfo(annotation=NoneType, required=False, default='2m_dewpoint_temperature')]

However when I try it doesn't show possible values, the output is:

typing.Annotated[str, FieldInfo(annotation=NoneType, required=False, default='2m_dewpoint_temperature')]

Note however that when we request the queryables from the rest server, they are present:

>>> import requests
>>> response = requests.get("http://127.0.0.1:5000/collections/CAMS_EAC4/queryables?provider=cop_ads")
>>> response.json()["properties"]["cop_ads:variable"]["enum"][:10]
['10m_u_component_of_wind',
 '10m_v_component_of_wind',
 '2m_dewpoint_temperature',
 '2m_temperature',
 'acetone',
 'acetone_product',
 'aldehydes',
 'amine',
 'ammonia',
 'ammonium']