class Stripe::StripeClient::SystemProfiler

def user_agent
  lang_version = "#{RUBY_VERSION} p#{RUBY_PATCHLEVEL} " \
                 "(#{RUBY_RELEASE_DATE})"
  {
    application: Stripe.app_info,
    bindings_version: Stripe::VERSION,
    lang: "ruby",
    lang_version: lang_version,
    platform: RUBY_PLATFORM,
    engine: defined?(RUBY_ENGINE) ? RUBY_ENGINE : "",
    publisher: "stripe",
    uname: @uname,
    hostname: Socket.gethostname,
  }.delete_if { |_k, v| v.nil? }
end