 /// with the given credentials.
 internal func createGitHubRequest(URL: NSURL, credentials: GitHubCredentials?) -> NSURLRequest {
 	let request = NSMutableURLRequest(URL: URL)
-	request.setValue("application/vnd.github.v3+json", forHTTPHeaderField: "Accept")
+	request.setValue(APIContentType, forHTTPHeaderField: "Accept")
 	request.setValue(userAgent, forHTTPHeaderField: "User-Agent")
 
 	if let credentials = credentials {


	return request
}

	return "\(identifier)/\(version)"
}()

/// The type of content to request from the GitHub API.
private let APIContentType = "application/vnd.github.v3+json"

/// Describes a GitHub.com repository.
public struct GitHubRepository: Equatable {
	public let owner: String
