feat(agentic_gemini): support agentic gemini

Author: mrh997

components/agentic/gemini/conv.go

@@ -0,0 +1,62 @@
+/*
+ * Copyright 2025 CloudWeGo Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"os"
+
+	"google.golang.org/genai"
+
+	"github.com/cloudwego/eino/schema"
+
+	"github.com/cloudwego/eino-ext/components/agentic/gemini"
+)
+
+func main() {
+	apiKey := os.Getenv("GEMINI_API_KEY")
+	modelName := os.Getenv("GEMINI_MODEL")
+
+	ctx := context.Background()
+	client, err := genai.NewClient(ctx, &genai.ClientConfig{
+		APIKey: apiKey,
+	})
+	if err != nil {
+		log.Fatalf("NewClient of gemini failed, err=%v", err)
+	}
+
+	cm, err := gemini.NewAgenticModel(ctx, &gemini.Config{
+		Client: client,
+		Model:  modelName,
+		ThinkingConfig: &genai.ThinkingConfig{
+			IncludeThoughts: true,
+			ThinkingBudget:  nil,
+		},
+	})
+	if err != nil {
+		log.Fatalf("NewChatModel of gemini failed, err=%v", err)
+	}
+
+	resp, err := cm.Generate(ctx, []*schema.AgenticMessage{schema.UserAgenticMessage("What's the capital of France")})
+	if err != nil {
+		log.Fatalf("Generate error: %v", err)
+	}
+
+	fmt.Printf("\n%s\n", resp.String())
+}

components/agentic/gemini/conv_test.go

@@ -0,0 +1,73 @@
+/*
+ * Copyright 2025 CloudWeGo Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+	"context"
+	"encoding/base64"
+	"fmt"
+	"log"
+	"os"
+
+	"google.golang.org/genai"
+
+	"github.com/cloudwego/eino/schema"
+
+	"github.com/cloudwego/eino-ext/components/agentic/gemini"
+)
+
+func main() {
+	apiKey := os.Getenv("GEMINI_API_KEY")
+	modelName := os.Getenv("GEMINI_MODEL")
+
+	ctx := context.Background()
+	client, err := genai.NewClient(ctx, &genai.ClientConfig{
+		APIKey: apiKey,
+	})
+	if err != nil {
+		log.Fatalf("NewClient of gemini failed, err=%v", err)
+	}
+
+	cm, err := gemini.NewAgenticModel(ctx, &gemini.Config{
+		Client: client,
+		Model:  modelName,
+	})
+	if err != nil {
+		log.Fatalf("NewChatModel of gemini failed, err=%v", err)
+	}
+
+	image, err := os.ReadFile("./examples/generate_with_image/test.jpg")
+	if err != nil {
+		log.Fatalf("os.ReadFile failed, err=%v\n", err)
+	}
+
+	imageStr := base64.StdEncoding.EncodeToString(image)
+
+	resp, err := cm.Generate(ctx, []*schema.AgenticMessage{
+		{
+			Role: schema.AgenticRoleTypeUser,
+			ContentBlocks: []*schema.ContentBlock{
+				{Type: schema.ContentBlockTypeUserInputText, UserInputText: &schema.UserInputText{Text: "What do you see in this image?"}},
+				{Type: schema.ContentBlockTypeUserInputImage, UserInputImage: &schema.UserInputImage{Base64Data: imageStr, MIMEType: "image/jpeg"}},
+			},
+		},
+	})
+	if err != nil {
+		log.Fatalf("Generate error: %v", err)
+	}
+	fmt.Printf("Assistant: %s\n", resp.String())
+}