End of Life Ruby 3.1 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

class method

OptionParser.getopts

getopts(*args)

# File tmp/rubies/ruby-3.1.3/lib/optparse.rb, line 1733
def self.getopts(*args)
  new.getopts(*args)
end

See also #getopts .each_const .inc .accept also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.0