# bnns_graph_compile_message_fn_t The graph compile-message logging callback function. ``` typealias bnns_graph_compile_message_fn_t = (BNNSGraphMessageLevel, UnsafePointer, UnsafePointer?, UnsafeMutablePointer?) -> Void ``` --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)