@interface MFMailSignatureController : NSObject - (id)_getSignatureStringForSender:(id)a0; - (id)_signatureStringForSender:(id)a0; - (void)addSignatureForSender:(id)a0 bodyField:(id)a1 prepend:(BOOL)a2; - (void)finalizeSignatureForBodyField:(id)a0 completionHandler:(id /* block */)a1; - (BOOL)isDefaultSignatureForSender:(id)a0; - (void)removeSignatureForSender:(id)a0 bodyField:(id)a1; - (void)updateSignatureForSender:(id)a0 bodyField:(id)a1; @end