I was looking at the GitHub GraphQL API (https://developer.github.com/v4/query) and noticed that they only expose a few root query types.
For example, to get a pull request you must use the `repository` Query type and access a pull request through the `Repository` object fields.
{
repository(name: 'test') {
pull_request(number: 2) {
title
}
}
}
{
pull_request(id: 12345) {
title
}
}