Export `DirectableGraphQLObject` type

[kennyjwilli]

Is your feature request related to a problem? Please describe.

I am working on a GraphQL library that works extensively with directives. I would like to write a wrapper function that calls getDirective. I'd like my wrapper function to take in a DirectableGraphQLObject.

Describe the solution you'd like

Export DirectableGraphQLObject, located here.

Describe alternatives you've considered

1. Copy and pasting the DirectableGraphQLObject into my codebase. This is less ideal since it results in duplicate code.
2. Adding a type assertion. This is prone to breakage since I cannot be sure the passed in type is correct.
3. Using a utility type to extract the type (e.g., Parameters<typeof getDirective>[1]). This is likely the best workaround for now.

Additional context

None.

[ardatan]

Sounds good! Would you create a PR?

[kennyjwilli]

Sure: https://github.com/ardatan/graphql-tools/pull/5444. Seemed straightforward. LMK if more is required.

[ardatan]

Thanks for the PR! Available in the latest version!