class RuboCop::Cop::Sorbet::EnforceSingleSigil

def investigate(processed_source)
  return if processed_source.tokens.empty?
  sigils = extract_all_sigils(processed_source)
  return unless sigils.size > 1
  sigils[1..sigils.size].each do |token|
    add_offense(token, location: token.pos, message: "Files must only contain one sigil")
  end
end