feat: 添加生成GeminiNano的功能

Author: zzcr

docs/src/gemini-nano.ts

@@ -0,0 +1,14 @@
+export const generateGeminiNano = async () => {
+  const { defaultTemperature, maxTemperature, defaultTopK, maxTopK } = await LanguageModel.params()
+
+  const available = await LanguageModel.availability()
+  if (available !== 'unavailable') {
+    const session = await LanguageModel.create()
+
+    // Prompt the model and stream the result:
+    const stream = session.promptStreaming('你好')
+    for await (const chunk of stream) {
+      console.log(chunk)
+    }
+  }
+}