@interface ACZeroingString : NSString { unsigned long long _length; } @property (readonly) unsigned short *characters; @property (readonly) unsigned long long length; + (Class)classForKeyedUnarchiver; + (id)_emptyString; + (BOOL)supportsSecureCoding; - (BOOL)_allowsDirectEncoding; - (void)dealloc; - (void)encodeWithCoder:(id)a0; - (unsigned short)characterAtIndex:(unsigned long long)a0; - (id)initWithCharacters:(const unsigned short *)a0 length:(unsigned long long)a1; - (Class)classForCoder; - (id)replacementObjectForCoder:(id)a0; - (id)_compatibleCopy; - (id)initWithString:(id)a0; - (void)getCharacters:(unsigned short *)a0 range:(struct _NSRange { unsigned long long x0; unsigned long long x1; })a1; - (id)initWithBytes:(const void *)a0 length:(unsigned long long)a1 encoding:(unsigned long long)a2; - (id)initWithCoder:(id)a0; - (Class)classForKeyedArchiver; - (id)copyWithZone:(struct _NSZone { } *)a0; - (id)initWithUTF8String:(const char *)a0; @end