This is part of an incremental transition from a hand-rolled to a more sophisticated GraphQL query + parsing mechanism.

• RepoNetwork

  cli/api/queries_repo.go

  Line 152 in c0c2862

  err := client.GraphQL(fmt.Sprintf(`

• PullRequestList

  cli/api/queries_pr.go

  Lines 523 to 525 in c0c2862

  	// If assignee was specified, use the `search` API rather than
  	// `Repository.pullRequests`, but this mode doesn't support multiple labels
  	if assignee, ok := vars["assignee"].(string); ok {

Follow up to #719
Ref. #190