Indicate that the delegate can provide an identity for the connection authentication
- iOS 9.0+
- macOS 10.11+
The connection sending this message.
true to provide the identity for this connection, in which case the delegate method
provide will be called.
The caller can implement this optional protocol method to decide whether it wants to provide the identity for this connection for authentication. If this delegate method is not implemented, the return value will default to YES if
provide is implemented.