\once \override Staff.AccidentalCautionary #'font-size = #-2
cis''?4
\once \override Staff.AccidentalCautionary #'parenthesized = ##t
\once \override Staff.AccidentalCautionary #'font-size = #-2
cis''?4
\once \override Staff.AccidentalCautionary #'parenthesized = ##t