Embedding Generator Get Service Returns Null For Unknown Key

This example assumes using Cohere; is in scope and apiKey contains your Cohere API key.

using var client = CreateTestClient();
Meai.IEmbeddingGenerator<string, Meai.Embedding<float>> generator = client;

var result = Meai.EmbeddingGeneratorExtensions.GetService<Meai.EmbeddingGeneratorMetadata>(generator, serviceKey: "unknown");