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kotlinlang

hello! I'm trying to create configuration property metadata (<https://docs.spring.io/spring-boot/docs/current/reference/html/appendix-configuration-metadata.html>) for a map of objects, e.g.

```
myProps:
  configs:
    someName:
      x: "foo"
      y: 1
    anotherName:
      x: "bar"
      y: 2
```

that can be mapped to something like

```
@ConstructorBinding
@ConfigurationProperties(prefix = "myProps")
data class MyProperties(val configs: Map&lt;String, MyCustomProperties&gt;)

data class MyCustomProperties(val x: String, val y: Int)
```

This seems to work fine and properties are loaded correctly in the application context but I don't get any auto-completion in the yml/properties files for `MyCustomProperties`. Anyone knows whether it is possible to somehow provide the configuration metadata for the above that IntelliJ is able to understand?

looks like it is not possible atm :disappointed:
* <https://youtrack.jetbrains.com/issue/IDEA-151708>
* <https://youtrack.jetbrains.com/issue/IDEA-159276>