Change extern type

7 years ago · 5eb9911a0e
parent 9f9141082b
commit 5eb9911a0e
1 changed files with 2 additions and 2 deletions
--- a/src/objective-c/GRPCClient/GRPCCall.h
+++ b/src/objective-c/GRPCClient/GRPCCall.h
@ -145,8 +145,8 @@ typedef NS_ENUM(NSUInteger, GRPCErrorCode) {
 * Keys used in |NSError|'s |userInfo| dictionary to store the response headers and trailers sent by
 * the server.
 */
-extern id const kGRPCHeadersKey;
-extern id const kGRPCTrailersKey;
+extern NSString * const kGRPCHeadersKey;
+extern NSString * const kGRPCTrailersKey;

 /** An object can implement this protocol to receive responses from server from a call. */
@protocol GRPCResponseHandler<NSObject>