feat(models): add tool, tool call

src/lib/models/types.ts

@@ -37,18 +37,33 @@ type GenerateOptions = {
   presencePenalty?: number;
 };
 
+type Tool = {
+  name: string;
+  description: string;
+  schema: z.ZodObject<any>;
+};
+
+type ToolCall = {
+  id?: string;
+  name: string;
+  arguments: Record<string, any>;
+};
+
 type GenerateTextInput = {
   messages: ChatTurnMessage[];
+  tools?: Tool[];
   options?: GenerateOptions;
 };
 
 type GenerateTextOutput = {
   content: string;
+  toolCalls: ToolCall[];
   additionalInfo?: Record<string, any>;
 };
 
 type StreamTextOutput = {
   contentChunk: string;
+  toolCallChunk: Partial<ToolCall>[];
   additionalInfo?: Record<string, any>;
   done?: boolean;
 };
@@ -83,4 +98,6 @@ export type {
   GenerateObjectInput,
   GenerateObjectOutput,
   StreamObjectOutput,
+  Tool,
+  ToolCall,
 };