Can't find types for icon names

So am creating a custom component `` which renders `Ionicon` icon as one of its children. I want the user of that component to be able to pass the name of the `Ionicon` icon he/she wants **InputField** to show via `iconName` prop.

Am using typescript so I need to type **iconName** to be one of the icon names that `Ionicon` supports (probably a union type). There seems not to be a way to do this as I can't find exported types for icon names in this library.

I want to be able to do something like this:
```typescript
import {IoniconName} from 'somewhere_in_the_library';
export type InputFieldProps = {
iconName: IoniconName;
//...Rest of the props for InputField
}

//...Rest of the code for `InputField`
```

The issue names the Ionicon component and the desired IoniconName export, but no repository file or test. Start by locating Ionicon's icon-name definitions and public exports; done means TypeScript consumers can import a type restricting iconName to supported names.

Written by the indexing model from the issue text.