novem/src/api/graphql/fetch_pull_request.graphql

query PullRequestQuery($id: ID!) {
    node(id: $id) {
        __typename
        ... on PullRequest {
            title
            body
            state
            isDraft
            createdAt
            baseRef {
                name
            }
            headRef {
                name
            }
            author {
                __typename
                login
                avatarUrl(size: 32)
            }
        }
    }
}