End of Life Ruby 3.2 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →
instance method
String#toutf32
String#toutf32 => string
ext/nkf/lib/kconv.rb
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# File tmp/rubies/ruby-3.2.0/ext/nkf/lib/kconv.rb, line 248
def toutf32; Kconv.toutf32(self) end
Convert self to UTF-32