class Aws::Plugins::UserAgent::Handler

def set_user_agent(context)
  ua = "aws-sdk-ruby2/#{VERSION} %s/%s %s %s" % [
    (RUBY_ENGINE rescue nil or "ruby"),
    RUBY_VERSION,
    RUBY_PLATFORM,
    context.config.user_agent_suffix,
  ]
  context.http_request.headers['User-Agent'] = ua.strip
end