Before this change, if an installation didn't have a .github repository, the GraphQL API request would error because we would provide a null value for the file expressions, when they're typed as non-null in the query.
Marking these arguments as nullable in the query resolves this issue.
Before this change, if an installation didn't have a .github repository, the GraphQL API request would error because we would provide a null value for the file expressions, when they're typed as non-null in the query.
Marking these arguments as nullable in the query resolves this issue.