class RuboCop::Cop::Rails::HttpPositionalArguments

def convert_hash_data(data, type)
  return '' if data.hash_type? && data.empty?
  hash_data = if data.hash_type?
                format('{ %<data>s }', data: data.pairs.map(&:source).join(', '))
              else
                # user supplies an object,
                # no need to surround with braces
                data.source
              end
  format(', %<type>s: %<hash_data>s', type: type, hash_data: hash_data)
end