chore: import upstream snapshot with attribution

tests/fixtures/sample.rb

@@ -0,0 +1,33 @@
+require 'json'
+require 'net/http'
+
+class ApiClient
+  def initialize(base_url)
+    @base_url = base_url
+  end
+
+  def get(path)
+    fetch(path, 'GET')
+  end
+
+  def post(path, body)
+    fetch(path, 'POST')
+  end
+
+  private
+
+  def fetch(path, method)
+    uri = URI(@base_url + path)
+    Net::HTTP.get(uri)
+  end
+end
+
+class TimeoutApiClient < ApiClient
+  def fetch(path, method)
+    super
+  end
+end
+
+def parse_response(raw)
+  JSON.parse(raw)
+end