@fuyun/generative-ai - npm Package Compare versions

Comparing version 0.2.1 to 0.3.1

dist/generative-ai.d.ts

@@ -89,22 +89,7 @@ /**
 /**
- * @license
- * Copyright 2023 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.
- */
-/**
  * Content type for both prompts and response candidates.
  * @public
  */
-export declare interface Content extends InputContent {
+export declare interface Content {
+    role: Role;
     parts: Part[];
@@ -166,2 +151,3 @@ }
     text: () => string;
+    functionCall: () => FunctionCall | undefined;
 }
@@ -183,2 +169,181 @@
 /**
+ * A predicted [FunctionCall] returned from the model
+ * that contains a string representing the [FunctionDeclaration.name]
+ * and a structured JSON object containing the parameters and their values.
+ * @public
+ */
+export declare interface FunctionCall {
+    name: string;
+    args: object;
+}
+
+/**
+ * Content part interface if the part represents FunctionResponse.
+ * @public
+ */
+export declare interface FunctionCallPart {
+    text?: never;
+    inlineData?: never;
+    functionCall: FunctionCall;
+    functionResponse?: never;
+}
+
+/**
+ * Structured representation of a function declaration as defined by the
+ * [OpenAPI 3.0 specification](https://spec.openapis.org/oas/v3.0.3). Included
+ * in this declaration are the function name and parameters. This
+ * FunctionDeclaration is a representation of a block of code that can be used
+ * as a Tool by the model and executed by the client.
+ * @public
+ */
+export declare interface FunctionDeclaration {
+    /**
+     * The name of the function to call. Must start with a letter or an
+     * underscore. Must be a-z, A-Z, 0-9, or contain underscores and dashes, with
+     * a max length of 64.
+     */
+    name: string;
+    /**
+     * Optional. Description and purpose of the function. Model uses it to decide
+     * how and whether to call the function.
+     */
+    description?: string;
+    /**
+     * Optional. Describes the parameters to this function in JSON Schema Object
+     * format. Reflects the Open API 3.03 Parameter Object. string Key: the name
+     * of the parameter. Parameter names are case sensitive. Schema Value: the
+     * Schema defining the type used for the parameter. For function with no
+     * parameters, this can be left unset.
+     *
+     * @example with 1 required and 1 optional parameter: type: OBJECT properties:
+     * ```
+     * param1:
+     *
+     *   type: STRING
+     * param2:
+     *
+     *  type: INTEGER
+     * required:
+     *
+     *   - param1
+     * ```
+     */
+    parameters?: FunctionDeclarationSchema;
+}
+
+/**
+ * Schema for parameters passed to {@link FunctionDeclaration.parameters}.
+ * @public
+ */
+export declare interface FunctionDeclarationSchema {
+    /** The type of the parameter. */
+    type: FunctionDeclarationSchemaType;
+    /** The format of the parameter. */
+    properties: {
+        [k: string]: FunctionDeclarationSchemaProperty;
+    };
+    /** Optional. Description of the parameter. */
+    description?: string;
+    /** Optional. Array of required parameters. */
+    required?: string[];
+}
+
+/**
+ * Schema is used to define the format of input/output data.
+ * Represents a select subset of an OpenAPI 3.0 schema object.
+ * More fields may be added in the future as needed.
+ * @public
+ */
+export declare interface FunctionDeclarationSchemaProperty {
+    /**
+     * Optional. The type of the property. {@link
+     * FunctionDeclarationSchemaType}.
+     */
+    type?: FunctionDeclarationSchemaType;
+    /** Optional. The format of the property. */
+    format?: string;
+    /** Optional. The description of the property. */
+    description?: string;
+    /** Optional. Whether the property is nullable. */
+    nullable?: boolean;
+    /** Optional. The items of the property. {@link FunctionDeclarationSchema} */
+    items?: FunctionDeclarationSchema;
+    /** Optional. The enum of the property. */
+    enum?: string[];
+    /** Optional. Map of {@link FunctionDeclarationSchema}. */
+    properties?: {
+        [k: string]: FunctionDeclarationSchema;
+    };
+    /** Optional. Array of required property. */
+    required?: string[];
+    /** Optional. The example of the property. */
+    example?: unknown;
+}
+
+/**
+ * Contains the list of OpenAPI data types
+ * as defined by https://swagger.io/docs/specification/data-models/data-types/
+ * @public
+ */
+export declare enum FunctionDeclarationSchemaType {
+    /** String type. */
+    STRING = "STRING",
+    /** Number type. */
+    NUMBER = "NUMBER",
+    /** Integer type. */
+    INTEGER = "INTEGER",
+    /** Boolean type. */
+    BOOLEAN = "BOOLEAN",
+    /** Array type. */
+    ARRAY = "ARRAY",
+    /** Object type. */
+    OBJECT = "OBJECT"
+}
+
+/**
+ * A FunctionDeclarationsTool is a piece of code that enables the system to
+ * interact with external systems to perform an action, or set of actions,
+ * outside of knowledge and scope of the model.
+ * @public
+ */
+export declare interface FunctionDeclarationsTool {
+    /**
+     * Optional. One or more function declarations
+     * to be passed to the model along with the current user query. Model may
+     * decide to call a subset of these functions by populating
+     * [FunctionCall][content.part.functionCall] in the response. User should
+     * provide a [FunctionResponse][content.part.functionResponse] for each
+     * function call in the next turn. Based on the function responses, Model will
+     * generate the final response back to the user. Maximum 64 function
+     * declarations can be provided.
+     */
+    functionDeclarations?: FunctionDeclaration[];
+}
+
+/**
+ * The result output from a [FunctionCall] that contains a string
+ * representing the [FunctionDeclaration.name]
+ * and a structured JSON object containing any output
+ * from the function is used as context to the model.
+ * This should contain the result of a [FunctionCall]
+ * made based on model prediction.
+ * @public
+ */
+export declare interface FunctionResponse {
+    name: string;
+    response: object;
+}
+
+/**
+ * Content part interface if the part represents FunctionResponse.
+ * @public
+ */
+export declare interface FunctionResponsePart {
+    text?: never;
+    inlineData?: never;
+    functionCall?: never;
+    functionResponse: FunctionResponse;
+}
+
+/**
  * A candidate returned as part of a {@link GenerateContentResponse}.
@@ -202,2 +367,3 @@ * @public
     contents: Content[];
+    tools?: Tool[];
 }
@@ -274,2 +440,3 @@
     requestOptions: RequestOptions;
+    tools?: Tool[];
     constructor(apiKey: string, modelParams: ModelParams, requestOptions?: RequestOptions);
@@ -333,18 +500,2 @@ /**
 /**
- * @license
- * Copyright 2023 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.
- */
-/**
  * Harm categories that would cause prompts or candidates to be blocked.
@@ -380,14 +531,7 @@ * @public
     inlineData: GenerativeContentBlob;
+    functionCall?: never;
+    functionResponse?: never;
 }
 
 /**
- * Content that can be provided as history input to startChat().
- * @public
- */
-export declare interface InputContent {
-    parts: string | Array<string | Part>;
-    role: string;
-}
-
-/**
  * Params passed to {@link GoogleGenerativeAI.getGenerativeModel}.
@@ -398,2 +542,3 @@ * @public
     model: string;
+    tools?: Tool[];
 }
@@ -405,5 +550,11 @@
  */
-export declare type Part = TextPart | InlineDataPart;
+export declare type Part = TextPart | InlineDataPart | FunctionCallPart | FunctionResponsePart;
 
 /**
+ * Possible roles.
+ * @public
+ */
+export declare const POSSIBLE_ROLES: readonly ["user", "model", "function"];
+
+/**
  * If the prompt was blocked, this will be populated with `blockReason` and
@@ -424,7 +575,37 @@ * the relevant `safetyRatings`.
 export declare interface RequestOptions {
+    /**
+     * Request timeout in milliseconds.
+     */
     timeout?: number;
     baseURL?: string;
+    /**
+     * Version of API endpoint to call (e.g. "v1" or "v1beta"). If not specified,
+     * defaults to latest stable version.
+     */
+    apiVersion?: string;
 }
 
 /**
+ * @license
+ * 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.
+ */
+/**
+ * Role is the producer of the content.
+ * @public
+ */
+export declare type Role = (typeof POSSIBLE_ROLES)[number];
+
+/**
  * A safety rating associated with a {@link GenerateContentCandidate}
@@ -452,3 +633,4 @@ * @public
 export declare interface StartChatParams extends BaseParams {
-    history?: InputContent[];
+    history?: Content[];
+    tools?: Tool[];
 }
@@ -476,4 +658,12 @@
     inlineData?: never;
+    functionCall?: never;
+    functionResponse?: never;
 }
 
+/**
+ * Defines a tool that model can call to access external knowledge.
+ * @public
+ */
+export declare type Tool = FunctionDeclarationsTool;
+
 export { }

dist/index.js

@@ -5,3 +5,3 @@ 'use strict';
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -21,2 +21,7 @@ * Licensed under the Apache License, Version 2.0 (the "License");
 /**
+ * Possible roles.
+ * @public
+ */
+const POSSIBLE_ROLES = ["user", "model", "function"];
+/**
  * Harm categories that would cause prompts or candidates to be blocked.
@@ -115,3 +120,3 @@ * @public
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -130,2 +135,39 @@ * Licensed under the Apache License, Version 2.0 (the "License");
  */
+/**
+ * Contains the list of OpenAPI data types
+ * as defined by https://swagger.io/docs/specification/data-models/data-types/
+ * @public
+ */
+exports.FunctionDeclarationSchemaType = void 0;
+(function (FunctionDeclarationSchemaType) {
+    /** String type. */
+    FunctionDeclarationSchemaType["STRING"] = "STRING";
+    /** Number type. */
+    FunctionDeclarationSchemaType["NUMBER"] = "NUMBER";
+    /** Integer type. */
+    FunctionDeclarationSchemaType["INTEGER"] = "INTEGER";
+    /** Boolean type. */
+    FunctionDeclarationSchemaType["BOOLEAN"] = "BOOLEAN";
+    /** Array type. */
+    FunctionDeclarationSchemaType["ARRAY"] = "ARRAY";
+    /** Object type. */
+    FunctionDeclarationSchemaType["OBJECT"] = "OBJECT";
+})(exports.FunctionDeclarationSchemaType || (exports.FunctionDeclarationSchemaType = {}));
+
+/**
+ * @license
+ * 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.
+ */
 class GoogleGenerativeAIError extends Error {
@@ -145,3 +187,3 @@ constructor(message) {
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -160,3 +202,4 @@ * Licensed under the Apache License, Version 2.0 (the "License");
  */
-const API_VERSION = "v1";
+const BASE_URL = "https://generativelanguage.googleapis.com";
+const DEFAULT_API_VERSION = "v1";
 /**
@@ -166,3 +209,3 @@ * We can't `require` package.json if this runs on web. We will use rollup to
  */
-const PACKAGE_VERSION = "0.2.1";
+const PACKAGE_VERSION = "0.3.1";
 const PACKAGE_LOG_HEADER = "genai-js";
@@ -186,4 +229,6 @@ var Task;
     toString() {
-        const baseURL = this.requestOptions.baseURL || 'https://generativelanguage.googleapis.com';
-        let url = `${baseURL}/${API_VERSION}/${this.model}:${this.task}`;
+        var _a, _b;
+        const baseURL = ((_a = this.requestOptions) === null || _a === void 0 ? void 0 : _a.baseURL) || BASE_URL;
+        const apiVersion = ((_b = this.requestOptions) === null || _b === void 0 ? void 0 : _b.apiVersion) || DEFAULT_API_VERSION;
+        let url = `${baseURL}/${apiVersion}/${this.model}:${this.task}`;
         if (this.stream) {
@@ -249,3 +294,3 @@ url += "?alt=sse";
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -286,2 +331,19 @@ * Licensed under the Apache License, Version 2.0 (the "License");
     };
+    response.functionCall = () => {
+        if (response.candidates && response.candidates.length > 0) {
+            if (response.candidates.length > 1) {
+                console.warn(`This response had ${response.candidates.length} ` +
+                    `candidates. Returning function call from the first candidate only. ` +
+                    `Access response.candidates directly to use the other candidates.`);
+            }
+            if (hadBadFinishReason(response.candidates[0])) {
+                throw new GoogleGenerativeAIResponseError(`${formatBlockErrorMessage(response)}`, response);
+            }
+            return getFunctionCall(response);
+        }
+        else if (response.promptFeedback) {
+            throw new GoogleGenerativeAIResponseError(`Function call not available. ${formatBlockErrorMessage(response)}`, response);
+        }
+        return undefined;
+    };
     return response;
@@ -295,3 +357,5 @@ }
     if ((_d = (_c = (_b = (_a = response.candidates) === null || _a === void 0 ? void 0 : _a[0].content) === null || _b === void 0 ? void 0 : _b.parts) === null || _c === void 0 ? void 0 : _c[0]) === null || _d === void 0 ? void 0 : _d.text) {
-        return response.candidates[0].content.parts[0].text;
+        return response.candidates[0].content.parts
+            .map(({ text }) => text)
+            .join("");
     }
@@ -302,2 +366,9 @@ else {
 }
+/**
+ * Returns functionCall of first candidate.
+ */
+function getFunctionCall(response) {
+    var _a, _b, _c, _d;
+    return (_d = (_c = (_b = (_a = response.candidates) === null || _a === void 0 ? void 0 : _a[0].content) === null || _b === void 0 ? void 0 : _b.parts) === null || _c === void 0 ? void 0 : _c[0]) === null || _d === void 0 ? void 0 : _d.functionCall;
+}
 const badFinishReasons = [exports.FinishReason.RECITATION, exports.FinishReason.SAFETY];
@@ -373,3 +444,3 @@ function hadBadFinishReason(candidate) {
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -509,10 +580,17 @@ * Licensed under the Apache License, Version 2.0 (the "License");
                             role: candidate.content.role || "user",
-                            parts: [{ text: "" }],
+                            parts: [],
                         };
                     }
+                    const newPart = {};
                     for (const part of candidate.content.parts) {
                         if (part.text) {
-                            aggregatedResponse.candidates[i].content.parts[0].text +=
-                                part.text;
+                            newPart.text = part.text;
                         }
+                        if (part.functionCall) {
+                            newPart.functionCall = part.functionCall;
+                        }
+                        if (Object.keys(newPart).length === 0) {
+                            newPart.text = "";
+                        }
+                        aggregatedResponse.candidates[i].content.parts.push(newPart);
                     }
@@ -528,3 +606,3 @@ }
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -562,3 +640,3 @@ * Licensed under the Apache License, Version 2.0 (the "License");
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -577,3 +655,3 @@ * Licensed under the Apache License, Version 2.0 (the "License");
  */
-function formatNewContent(request, role) {
+function formatNewContent(request) {
     let newParts = [];
@@ -593,4 +671,38 @@ if (typeof request === "string") {
     }
-    return { role, parts: newParts };
+    return assignRoleToPartsAndValidateSendMessageRequest(newParts);
 }
+/**
+ * When multiple Part types (i.e. FunctionResponsePart and TextPart) are
+ * passed in a single Part array, we may need to assign different roles to each
+ * part. Currently only FunctionResponsePart requires a role other than 'user'.
+ * @private
+ * @param parts Array of parts to pass to the model
+ * @returns Array of content items
+ */
+function assignRoleToPartsAndValidateSendMessageRequest(parts) {
+    const userContent = { role: "user", parts: [] };
+    const functionContent = { role: "function", parts: [] };
+    let hasUserContent = false;
+    let hasFunctionContent = false;
+    for (const part of parts) {
+        if ("functionResponse" in part) {
+            functionContent.parts.push(part);
+            hasFunctionContent = true;
+        }
+        else {
+            userContent.parts.push(part);
+            hasUserContent = true;
+        }
+    }
+    if (hasUserContent && hasFunctionContent) {
+        throw new GoogleGenerativeAIError("Within a single message, FunctionResponse cannot be mixed with other type of part in the request for sending chat message.");
+    }
+    if (!hasUserContent && !hasFunctionContent) {
+        throw new GoogleGenerativeAIError("No content is provided for sending chat message.");
+    }
+    if (hasUserContent) {
+        return userContent;
+    }
+    return functionContent;
+}
 function formatGenerateContentInput(params) {
@@ -601,3 +713,3 @@ if (params.contents) {
     else {
-        const content = formatNewContent(params, "user");
+        const content = formatNewContent(params);
         return { contents: [content] };
@@ -608,3 +720,3 @@ }
     if (typeof params === "string" || Array.isArray(params)) {
-        const content = formatNewContent(params, "user");
+        const content = formatNewContent(params);
         return { content };
@@ -617,3 +729,3 @@ }
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -632,3 +744,81 @@ * Licensed under the Apache License, Version 2.0 (the "License");
  */
+// https://ai.google.dev/api/rest/v1beta/Content#part
+const VALID_PART_FIELDS = [
+    "text",
+    "inlineData",
+    "functionCall",
+    "functionResponse",
+];
+const VALID_PARTS_PER_ROLE = {
+    user: ["text", "inlineData"],
+    function: ["functionResponse"],
+    model: ["text", "functionCall"],
+};
+const VALID_PREVIOUS_CONTENT_ROLES = {
+    user: ["model"],
+    function: ["model"],
+    model: ["user", "function"],
+};
+function validateChatHistory(history) {
+    let prevContent;
+    for (const currContent of history) {
+        const { role, parts } = currContent;
+        if (!prevContent && role !== "user") {
+            throw new GoogleGenerativeAIError(`First content should be with role 'user', got ${role}`);
+        }
+        if (!POSSIBLE_ROLES.includes(role)) {
+            throw new GoogleGenerativeAIError(`Each item should include role field. Got ${role} but valid roles are: ${JSON.stringify(POSSIBLE_ROLES)}`);
+        }
+        if (!Array.isArray(parts)) {
+            throw new GoogleGenerativeAIError("Content should have 'parts' property with an array of Parts");
+        }
+        if (parts.length === 0) {
+            throw new GoogleGenerativeAIError("Each Content should have at least one part");
+        }
+        const countFields = {
+            text: 0,
+            inlineData: 0,
+            functionCall: 0,
+            functionResponse: 0,
+        };
+        for (const part of parts) {
+            for (const key of VALID_PART_FIELDS) {
+                if (key in part) {
+                    countFields[key] += 1;
+                }
+            }
+        }
+        const validParts = VALID_PARTS_PER_ROLE[role];
+        for (const key of VALID_PART_FIELDS) {
+            if (!validParts.includes(key) && countFields[key] > 0) {
+                throw new GoogleGenerativeAIError(`Content with role '${role}' can't contain '${key}' part`);
+            }
+        }
+        if (prevContent) {
+            const validPreviousContentRoles = VALID_PREVIOUS_CONTENT_ROLES[role];
+            if (!validPreviousContentRoles.includes(prevContent.role)) {
+                throw new GoogleGenerativeAIError(`Content with role '${role}' can't follow '${prevContent.role}'. Valid previous roles: ${JSON.stringify(VALID_PREVIOUS_CONTENT_ROLES)}`);
+            }
+        }
+        prevContent = currContent;
+    }
+}
+
 /**
+ * @license
+ * 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.
+ */
+/**
  * Do not log a message for this error.
@@ -652,8 +842,4 @@ */
         if (params === null || params === void 0 ? void 0 : params.history) {
-            this._history = params.history.map((content) => {
-                if (!content.role) {
-                    throw new Error("Missing role for history item: " + JSON.stringify(content));
-                }
-                return formatNewContent(content.parts, content.role);
-            });
+            validateChatHistory(params.history);
+            this._history = params.history;
         }
@@ -675,8 +861,9 @@ }
     async sendMessage(request) {
-        var _a, _b;
+        var _a, _b, _c;
         await this._sendPromise;
-        const newContent = formatNewContent(request, "user");
+        const newContent = formatNewContent(request);
         const generateContentRequest = {
             safetySettings: (_a = this.params) === null || _a === void 0 ? void 0 : _a.safetySettings,
             generationConfig: (_b = this.params) === null || _b === void 0 ? void 0 : _b.generationConfig,
+            tools: (_c = this.params) === null || _c === void 0 ? void 0 : _c.tools,
             contents: [...this._history, newContent],
@@ -715,8 +902,9 @@ };
     async sendMessageStream(request) {
-        var _a, _b;
+        var _a, _b, _c;
         await this._sendPromise;
-        const newContent = formatNewContent(request, "user");
+        const newContent = formatNewContent(request);
         const generateContentRequest = {
             safetySettings: (_a = this.params) === null || _a === void 0 ? void 0 : _a.safetySettings,
             generationConfig: (_b = this.params) === null || _b === void 0 ? void 0 : _b.generationConfig,
+            tools: (_c = this.params) === null || _c === void 0 ? void 0 : _c.tools,
             contents: [...this._history, newContent],
@@ -767,3 +955,3 @@ };
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -790,3 +978,3 @@ * Licensed under the Apache License, Version 2.0 (the "License");
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -821,3 +1009,3 @@ * Licensed under the Apache License, Version 2.0 (the "License");
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -853,2 +1041,3 @@ * Licensed under the Apache License, Version 2.0 (the "License");
         this.safetySettings = modelParams.safetySettings || [];
+        this.tools = modelParams.tools;
         this.requestOptions = requestOptions || {};
@@ -862,3 +1051,3 @@ }
         const formattedParams = formatGenerateContentInput(request);
-        return generateContent(this.apiKey, this.model, Object.assign({ generationConfig: this.generationConfig, safetySettings: this.safetySettings }, formattedParams), this.requestOptions);
+        return generateContent(this.apiKey, this.model, Object.assign({ generationConfig: this.generationConfig, safetySettings: this.safetySettings, tools: this.tools }, formattedParams), this.requestOptions);
     }
@@ -873,3 +1062,3 @@ /**
         const formattedParams = formatGenerateContentInput(request);
-        return generateContentStream(this.apiKey, this.model, Object.assign({ generationConfig: this.generationConfig, safetySettings: this.safetySettings }, formattedParams), this.requestOptions);
+        return generateContentStream(this.apiKey, this.model, Object.assign({ generationConfig: this.generationConfig, safetySettings: this.safetySettings, tools: this.tools }, formattedParams), this.requestOptions);
     }
@@ -881,3 +1070,3 @@ /**
     startChat(startChatParams) {
-        return new ChatSession(this.apiKey, this.model, startChatParams, this.requestOptions);
+        return new ChatSession(this.apiKey, this.model, Object.assign({ tools: this.tools }, startChatParams), this.requestOptions);
     }
@@ -908,3 +1097,3 @@ /**
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -946,2 +1135,3 @@ * Licensed under the Apache License, Version 2.0 (the "License");
 exports.GoogleGenerativeAI = GoogleGenerativeAI;
+exports.POSSIBLE_ROLES = POSSIBLE_ROLES;
 //# sourceMappingURL=index.js.map

dist/src/errors.d.ts

 /**
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -5,0 +5,0 @@ * Licensed under the Apache License, Version 2.0 (the "License");

dist/src/gen-ai.d.ts

 /**
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -5,0 +5,0 @@ * Licensed under the Apache License, Version 2.0 (the "License");

dist/src/index.d.ts

 /**
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -5,0 +5,0 @@ * Licensed under the Apache License, Version 2.0 (the "License");

dist/src/methods/chat-session.d.ts

 /**
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -5,0 +5,0 @@ * Licensed under the Apache License, Version 2.0 (the "License");

dist/src/methods/count-tokens.d.ts

 /**
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -5,0 +5,0 @@ * Licensed under the Apache License, Version 2.0 (the "License");

dist/src/methods/embed-content.d.ts

 /**
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -5,0 +5,0 @@ * Licensed under the Apache License, Version 2.0 (the "License");

dist/src/methods/generate-content.d.ts

 /**
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -5,0 +5,0 @@ * Licensed under the Apache License, Version 2.0 (the "License");

dist/src/models/generative-model.d.ts

 /**
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -17,3 +17,3 @@ * Licensed under the Apache License, Version 2.0 (the "License");
  */
-import { BatchEmbedContentsRequest, BatchEmbedContentsResponse, CountTokensRequest, CountTokensResponse, EmbedContentRequest, EmbedContentResponse, GenerateContentRequest, GenerateContentResult, GenerateContentStreamResult, GenerationConfig, ModelParams, Part, RequestOptions, SafetySetting, StartChatParams } from "../../types";
+import { BatchEmbedContentsRequest, BatchEmbedContentsResponse, CountTokensRequest, CountTokensResponse, EmbedContentRequest, EmbedContentResponse, GenerateContentRequest, GenerateContentResult, GenerateContentStreamResult, GenerationConfig, ModelParams, Part, RequestOptions, SafetySetting, StartChatParams, Tool } from "../../types";
 import { ChatSession } from "../methods/chat-session";
@@ -30,2 +30,3 @@ /**
     requestOptions: RequestOptions;
+    tools?: Tool[];
     constructor(apiKey: string, modelParams: ModelParams, requestOptions?: RequestOptions);
@@ -32,0 +33,0 @@ /**

dist/src/requests/request-helpers.d.ts

 /**
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -18,4 +18,4 @@ * Licensed under the Apache License, Version 2.0 (the "License");
 import { Content, EmbedContentRequest, GenerateContentRequest, Part } from "../../types";
-export declare function formatNewContent(request: string | Array<string | Part>, role: string): Content;
+export declare function formatNewContent(request: string | Array<string | Part>): Content;
 export declare function formatGenerateContentInput(params: GenerateContentRequest | string | Array<string | Part>): GenerateContentRequest;
 export declare function formatEmbedContentInput(params: EmbedContentRequest | string | Array<string | Part>): EmbedContentRequest;

dist/src/requests/request.d.ts

 /**
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -18,2 +18,3 @@ * Licensed under the Apache License, Version 2.0 (the "License");
 import { RequestOptions } from "../../types";
+export declare const DEFAULT_API_VERSION = "v1";
 export declare enum Task {
@@ -20,0 +21,0 @@ GENERATE_CONTENT = "generateContent",

dist/src/requests/response-helpers.d.ts

 /**
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -17,3 +17,3 @@ * Licensed under the Apache License, Version 2.0 (the "License");
  */
-import { EnhancedGenerateContentResponse, GenerateContentResponse } from "../../types";
+import { EnhancedGenerateContentResponse, FunctionCall, GenerateContentResponse } from "../../types";
 /**
@@ -28,2 +28,6 @@ * Adds convenience helper methods to a response object, including stream
 export declare function getText(response: GenerateContentResponse): string;
+/**
+ * Returns functionCall of first candidate.
+ */
+export declare function getFunctionCall(response: GenerateContentResponse): FunctionCall;
 export declare function formatBlockErrorMessage(response: GenerateContentResponse): string;

dist/src/requests/stream-reader.d.ts

 /**
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -5,0 +5,0 @@ * Licensed under the Apache License, Version 2.0 (the "License");

dist/types/content.d.ts

 /**
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -17,2 +17,3 @@ * Licensed under the Apache License, Version 2.0 (the "License");
  */
+import { Role } from "./enums";
 /**
@@ -22,18 +23,11 @@ * Content type for both prompts and response candidates.
  */
-export interface Content extends InputContent {
+export interface Content {
+    role: Role;
     parts: Part[];
 }
 /**
- * Content that can be provided as history input to startChat().
- * @public
- */
-export interface InputContent {
-    parts: string | Array<string | Part>;
-    role: string;
-}
-/**
  * Content part - includes text or image part types.
  * @public
  */
-export type Part = TextPart | InlineDataPart;
+export type Part = TextPart | InlineDataPart | FunctionCallPart | FunctionResponsePart;
 /**
@@ -46,2 +40,4 @@ * Content part interface if the part represents a text string.
     inlineData?: never;
+    functionCall?: never;
+    functionResponse?: never;
 }
@@ -55,4 +51,49 @@ /**
     inlineData: GenerativeContentBlob;
+    functionCall?: never;
+    functionResponse?: never;
 }
 /**
+ * Content part interface if the part represents FunctionResponse.
+ * @public
+ */
+export interface FunctionCallPart {
+    text?: never;
+    inlineData?: never;
+    functionCall: FunctionCall;
+    functionResponse?: never;
+}
+/**
+ * Content part interface if the part represents FunctionResponse.
+ * @public
+ */
+export interface FunctionResponsePart {
+    text?: never;
+    inlineData?: never;
+    functionCall?: never;
+    functionResponse: FunctionResponse;
+}
+/**
+ * A predicted [FunctionCall] returned from the model
+ * that contains a string representing the [FunctionDeclaration.name]
+ * and a structured JSON object containing the parameters and their values.
+ * @public
+ */
+export interface FunctionCall {
+    name: string;
+    args: object;
+}
+/**
+ * The result output from a [FunctionCall] that contains a string
+ * representing the [FunctionDeclaration.name]
+ * and a structured JSON object containing any output
+ * from the function is used as context to the model.
+ * This should contain the result of a [FunctionCall]
+ * made based on model prediction.
+ * @public
+ */
+export interface FunctionResponse {
+    name: string;
+    response: object;
+}
+/**
  * Interface for sending an image.
@@ -59,0 +100,0 @@ * @public

dist/types/enums.d.ts

 /**
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -18,2 +18,12 @@ * Licensed under the Apache License, Version 2.0 (the "License");
 /**
+ * Role is the producer of the content.
+ * @public
+ */
+export type Role = (typeof POSSIBLE_ROLES)[number];
+/**
+ * Possible roles.
+ * @public
+ */
+export declare const POSSIBLE_ROLES: readonly ["user", "model", "function"];
+/**
  * Harm categories that would cause prompts or candidates to be blocked.
@@ -20,0 +30,0 @@ * @public

dist/types/index.d.ts

 /**
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -5,0 +5,0 @@ * Licensed under the Apache License, Version 2.0 (the "License");

dist/types/requests.d.ts

 /**
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -17,3 +17,3 @@ * Licensed under the Apache License, Version 2.0 (the "License");
  */
-import { Content, InputContent } from "./content";
+import { Content } from "./content";
 import { HarmBlockThreshold, HarmCategory, TaskType } from "./enums";
@@ -34,2 +34,3 @@ /**
     model: string;
+    tools?: Tool[];
 }
@@ -42,2 +43,3 @@ /**
     contents: Content[];
+    tools?: Tool[];
 }
@@ -69,3 +71,4 @@ /**
 export interface StartChatParams extends BaseParams {
-    history?: InputContent[];
+    history?: Content[];
+    tools?: Tool[];
 }
@@ -100,4 +103,144 @@ /**
 export interface RequestOptions {
+    /**
+     * Request timeout in milliseconds.
+     */
     timeout?: number;
     baseURL?: string;
+    /**
+     * Version of API endpoint to call (e.g. "v1" or "v1beta"). If not specified,
+     * defaults to latest stable version.
+     */
+    apiVersion?: string;
 }
+/**
+ * Defines a tool that model can call to access external knowledge.
+ * @public
+ */
+export declare type Tool = FunctionDeclarationsTool;
+/**
+ * Structured representation of a function declaration as defined by the
+ * [OpenAPI 3.0 specification](https://spec.openapis.org/oas/v3.0.3). Included
+ * in this declaration are the function name and parameters. This
+ * FunctionDeclaration is a representation of a block of code that can be used
+ * as a Tool by the model and executed by the client.
+ * @public
+ */
+export declare interface FunctionDeclaration {
+    /**
+     * The name of the function to call. Must start with a letter or an
+     * underscore. Must be a-z, A-Z, 0-9, or contain underscores and dashes, with
+     * a max length of 64.
+     */
+    name: string;
+    /**
+     * Optional. Description and purpose of the function. Model uses it to decide
+     * how and whether to call the function.
+     */
+    description?: string;
+    /**
+     * Optional. Describes the parameters to this function in JSON Schema Object
+     * format. Reflects the Open API 3.03 Parameter Object. string Key: the name
+     * of the parameter. Parameter names are case sensitive. Schema Value: the
+     * Schema defining the type used for the parameter. For function with no
+     * parameters, this can be left unset.
+     *
+     * @example with 1 required and 1 optional parameter: type: OBJECT properties:
+     * ```
+     * param1:
+     *
+     *   type: STRING
+     * param2:
+     *
+     *  type: INTEGER
+     * required:
+     *
+     *   - param1
+     * ```
+     */
+    parameters?: FunctionDeclarationSchema;
+}
+/**
+ * A FunctionDeclarationsTool is a piece of code that enables the system to
+ * interact with external systems to perform an action, or set of actions,
+ * outside of knowledge and scope of the model.
+ * @public
+ */
+export declare interface FunctionDeclarationsTool {
+    /**
+     * Optional. One or more function declarations
+     * to be passed to the model along with the current user query. Model may
+     * decide to call a subset of these functions by populating
+     * [FunctionCall][content.part.functionCall] in the response. User should
+     * provide a [FunctionResponse][content.part.functionResponse] for each
+     * function call in the next turn. Based on the function responses, Model will
+     * generate the final response back to the user. Maximum 64 function
+     * declarations can be provided.
+     */
+    functionDeclarations?: FunctionDeclaration[];
+}
+/**
+ * Contains the list of OpenAPI data types
+ * as defined by https://swagger.io/docs/specification/data-models/data-types/
+ * @public
+ */
+export declare enum FunctionDeclarationSchemaType {
+    /** String type. */
+    STRING = "STRING",
+    /** Number type. */
+    NUMBER = "NUMBER",
+    /** Integer type. */
+    INTEGER = "INTEGER",
+    /** Boolean type. */
+    BOOLEAN = "BOOLEAN",
+    /** Array type. */
+    ARRAY = "ARRAY",
+    /** Object type. */
+    OBJECT = "OBJECT"
+}
+/**
+ * Schema for parameters passed to {@link FunctionDeclaration.parameters}.
+ * @public
+ */
+export interface FunctionDeclarationSchema {
+    /** The type of the parameter. */
+    type: FunctionDeclarationSchemaType;
+    /** The format of the parameter. */
+    properties: {
+        [k: string]: FunctionDeclarationSchemaProperty;
+    };
+    /** Optional. Description of the parameter. */
+    description?: string;
+    /** Optional. Array of required parameters. */
+    required?: string[];
+}
+/**
+ * Schema is used to define the format of input/output data.
+ * Represents a select subset of an OpenAPI 3.0 schema object.
+ * More fields may be added in the future as needed.
+ * @public
+ */
+export interface FunctionDeclarationSchemaProperty {
+    /**
+     * Optional. The type of the property. {@link
+     * FunctionDeclarationSchemaType}.
+     */
+    type?: FunctionDeclarationSchemaType;
+    /** Optional. The format of the property. */
+    format?: string;
+    /** Optional. The description of the property. */
+    description?: string;
+    /** Optional. Whether the property is nullable. */
+    nullable?: boolean;
+    /** Optional. The items of the property. {@link FunctionDeclarationSchema} */
+    items?: FunctionDeclarationSchema;
+    /** Optional. The enum of the property. */
+    enum?: string[];
+    /** Optional. Map of {@link FunctionDeclarationSchema}. */
+    properties?: {
+        [k: string]: FunctionDeclarationSchema;
+    };
+    /** Optional. Array of required property. */
+    required?: string[];
+    /** Optional. The example of the property. */
+    example?: unknown;
+}

dist/types/responses.d.ts

 /**
  * @license
- * Copyright 2023 Google LLC
+ * Copyright 2024 Google LLC
  *
@@ -17,3 +17,3 @@ * Licensed under the Apache License, Version 2.0 (the "License");
  */
-import { Content } from "./content";
+import { Content, FunctionCall } from "./content";
 import { BlockReason, FinishReason, HarmCategory, HarmProbability } from "./enums";
@@ -51,2 +51,3 @@ /**
     text: () => string;
+    functionCall: () => FunctionCall | undefined;
 }
@@ -53,0 +54,0 @@ /**

package.json

 {
   "name": "@fuyun/generative-ai",
-  "version": "0.2.1",
+  "version": "0.3.1",
   "description": "Google AI JavaScript SDK",
@@ -5,0 +5,0 @@ "main": "dist/index.js",

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