   }
 }
 
-@available(macOS 12.0, iOS 15.0, watchOS 8.0, tvOS 15.0, *)
+@available(macOS 10.15, iOS 13.0, watchOS 6.0, tvOS 13.0, *)
 extension Promise where Error == Swift.Error {
 
   /// Initialize a Promise using an async closure that can throw an error.

  }
}

@available(macOS 12.0, iOS 15.0, watchOS 8.0, tvOS 15.0, *)
extension Promise where Error == Never {

  /// Async property that returns the value of the promise when it is resolved.


import Foundation

@available(macOS 10.15, iOS 13.0, watchOS 6.0, tvOS 13.0, *)
extension Promise {

  /// Async property that returns the value of the promise when it is resolved, or throws when the promise is rejected.
