Create responses_generatetext.cs

Author: achandmsft

docs/quickstart/responses/responses_generatetext.cs

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+// SAMPLE: Developer QuickStart
+// GUIDANCE: https://platform.openai.com/docs/overview 
+// HOWTO: Instructions to run this code: https://aka.ms/oai/net/start 
+#:package OpenAI@2.2.*-*
+#:property PublishAot false
+
+using OpenAI.Responses; 
+
+string key = Environment.GetEnvironmentVariable("OPENAI_API_KEY")!;
+OpenAIResponseClient client = new("gpt-4.1", key);
+OpenAIResponse response = client.CreateResponse("Write a one-sentence bedtime story about a unicorn.");
+Console.WriteLine(response.GetOutputText());