Galaxy API- using endpoints (Mutations)

Hi, I was working with API Galaxy and its endpoints. When I used mutations, I had problems with the input arguments. I didn’t find any more documentation on the structure of these mutations, I only got the documentation found in the graphql explorer.
The endpoint I’m unsure about is “changeSettingsForApp”, this takes an app id and settings, but when I try to put the id of containerType as settings I can’t get it done, so if is possible please provide more information or an idea of ​​what dot (mutation) use to change containerType id using Galaxy API, I will appreciate it.

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