Originally posted by **kovacsandor** September 15, 2021
As it can be seen below, carbon-components-react MultiSelect implementation makes use of a helperText property. It is missing in the type definition.
https://github.com/carbon-design-system/carbon/blob/main/packages/react/src/components/MultiSelect/MultiSelect.js
![image](https://user-images.githubusercontent.com/19869080/133441005-24c63c84-9051-49b5-a5c6-93b7b5f7933c.png)
Discussed in https://github.com/DefinitelyTyped/DefinitelyTyped/discussions/55797