feat: gitea client

vendor/github.com/google/generative-ai-go/genai/option.go

@@ -0,0 +1,44 @@
+// Copyright 2024 Google LLC
+//
+// 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 genai
+
+import (
+	"google.golang.org/api/option"
+	"google.golang.org/api/option/internaloption"
+)
+
+// WithClientInfo sets request information identifying the
+// product that is calling this client.
+func WithClientInfo(key, value string) option.ClientOption {
+	return &clientInfo{key: key, value: value}
+}
+
+type clientInfo struct {
+	internaloption.EmbeddableAdapter
+	key, value string
+}
+
+// optionOfType returns the first value of opts that has type T,
+// along with true. If there is no option of that type, it returns
+// the zero value for T and false.
+func optionOfType[T option.ClientOption](opts []option.ClientOption) (T, bool) {
+	for _, opt := range opts {
+		if opt, ok := opt.(T); ok {
+			return opt, true
+		}
+	}
+	var z T
+	return z, false
+}