class Github::Error::ServiceError

def format_response
  return '' if data.nil? || data.empty?
  case data
  when Hash
    message = data[:message] ? data[:message] : ' '
    docs = data[:documentation_url]
    error = create_error_summary
    message << error if error
    message << "\nSee: #{docs}" if docs
    message
  when String
    data
  end
end