RIC name from chaincode error ,ask for help

Hello, thanks to chain_code, I can get RIC name through a very easy way .Bellow is an example

dl,e=ek.get_data('0#.HSI',["DSPLY_NAME"])
dl

and the result is

but when I try the "0#.KS200", there is no data

dl,e=ek.get_data('0#.KS200',["DSPLY_NAME"])
dl

anyone knows about it?

Thanks

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eikon

workspace

chain-ric

Using real-time chains with the beta api is somewhat troublesome, I suggest you do this:

df, e = tr.get_data(['.KS200'], ['TR.IndexConstituentRIC', 'TR.IndexConstituentName'])

Using real-time chains with the beta api is somewhat troublesome, I suggest you do this:

df, e = tr.get_data(['.KS200'], ['TR.IndexConstituentRIC', 'TR.IndexConstituentName'])

Yes, It works. The problem is how can I get fields like

'TR.IndexConstituentRIC', 'TR.IndexConstituentName'

is there a dictionary for checking?

fields like [DSPLY_NAME]

I can get this field through F4， type the RIC ,

can you help to tell me how to get ['TR.IndexConstituentRIC', 'TR.IndexConstituentName']?