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-rw-r--r--src/objc/pop/MCOPOPOperation.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/objc/pop/MCOPOPOperation.h b/src/objc/pop/MCOPOPOperation.h
index 9eaf7fff..656b57a1 100644
--- a/src/objc/pop/MCOPOPOperation.h
+++ b/src/objc/pop/MCOPOPOperation.h
@@ -17,7 +17,11 @@
// See MCOPOPSession for more info.
@interface MCOPOPOperation : MCOOperation
-- (void)start:(void (^)(NSError *error))completionBlock;
+
+// On success, the completion block will be called with nil as error.
+// On failure, error will be set with MCOErrorDomain as domain and an error code available in MCOConstants.h.
+- (void) start:(void (^)(NSError * error))completionBlock;
+
@end
#endif