 	/// - parameter group: An optional `DispatchGroup` with which to associate `block`
 	/// - parameter qos: The quality of service for `block`
 	/// - parameter block: A closure performing the database operation
-	public func transaction_async(type: Database.TransactionType = .deferred, group: DispatchGroup? = nil, qos: DispatchQoS = .unspecified, _ block: @escaping Database.TransactionBlock) {
+	public func asyncTransaction(type: Database.TransactionType = .deferred, group: DispatchGroup? = nil, qos: DispatchQoS = .default, _ block: @escaping Database.TransactionBlock) {
 		queue.async(group: group, qos: qos) {
 			do {
 				try self.database.transaction(type: type, block)

/// ```swift
/// dbQueue.transaction { db in
///     // All database operations here are contained within a transaction
/// }
/// ```
public final class DatabaseQueue {
	/// The underlying database
	private let database: Database
	/// The dispatch queue used to serialize access to the underlying database connection
	public let queue: DispatchQueue


	/// - parameter qos: The quality of service for `block`
	/// - parameter block: A closure performing the database operation
	/// - parameter database: A `Database` used for database access within `block`
	public func async(group: DispatchGroup? = nil, qos: DispatchQoS = .default, block: @escaping (_ database: Database) -> (Void)) {
		queue.async(group: group, qos: qos) {
			block(self.database)
		}
