Gem::ConfigFile.deep_transform_config_keys!

# File tmp/rubies/ruby-4.1.0-preview1/lib/rubygems/config_file.rb, line 775
def self.deep_transform_config_keys!(config)
  config.transform_keys! do |k|
    if k.match?(/\A:(.*)\z/)
      k[1..-1].to_sym
    elsif k.include?("__") || k.end_with?("/")
      if k.is_a?(Symbol)
        k.to_s.gsub(/__/,".").delete_suffix("/").to_sym
      else
        k.dup.gsub(/__/,".").delete_suffix("/")
      end
    else
      k
    end
  end

  config.transform_values! do |v|
    if v.is_a?(String)
      if v.match?(/\A:(.*)\z/)
        v[1..-1].to_sym
      elsif v.match?(/\A[+-]?\d+\z/)
        v.to_i
      elsif v.match?(/\A(?:true|false)\z/)
        v == "true"
      elsif v.empty?
        nil
      else
        v
      end
    elsif v.respond_to?(:empty?) && v.empty?
      nil
    elsif v.is_a?(Hash)
      deep_transform_config_keys!(v)
    else
      v
    end
  end

  config
end