nitroAnyMapFromNative function
Decode a NitroAnyMap from a native pointer produced by NitroAnyMapNative.toNative or the C bridge.
Wire: RecordWriter outer 4B length prefix + map entries.
Does NOT free ptr — caller is responsible.
Implementation
NitroAnyMap nitroAnyMapFromNative(Pointer<Uint8> ptr) => NitroAnyMap.readFrom(RecordReader.fromNative(ptr));