@genkit-ai/ai/lib/parts.d.ts

Genkit AI framework generative AI APIs.

import { z } from '@genkit-ai/core';

/**
 * Copyright 2025 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.
 */

/**
 * Zod schema for a text part.
 */
declare const TextPartSchema: z.ZodObject<{
    media: z.ZodOptional<z.ZodNever>;
    toolRequest: z.ZodOptional<z.ZodNever>;
    toolResponse: z.ZodOptional<z.ZodNever>;
    data: z.ZodOptional<z.ZodUnknown>;
    metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    reasoning: z.ZodOptional<z.ZodNever>;
    resource: z.ZodOptional<z.ZodNever>;
} & {
    text: z.ZodString;
}, "strip", z.ZodTypeAny, {
    text: string;
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    media?: undefined;
    toolRequest?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    reasoning?: undefined;
    resource?: undefined;
}, {
    text: string;
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    media?: undefined;
    toolRequest?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    reasoning?: undefined;
    resource?: undefined;
}>;
/**
 * Text part.
 */
type TextPart = z.infer<typeof TextPartSchema>;
/**
 * Zod schema for a reasoning part.
 */
declare const ReasoningPartSchema: z.ZodObject<{
    text: z.ZodOptional<z.ZodNever>;
    media: z.ZodOptional<z.ZodNever>;
    toolRequest: z.ZodOptional<z.ZodNever>;
    toolResponse: z.ZodOptional<z.ZodNever>;
    data: z.ZodOptional<z.ZodUnknown>;
    metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    resource: z.ZodOptional<z.ZodNever>;
} & {
    reasoning: z.ZodString;
}, "strip", z.ZodTypeAny, {
    reasoning: string;
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    text?: undefined;
    media?: undefined;
    toolRequest?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    resource?: undefined;
}, {
    reasoning: string;
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    text?: undefined;
    media?: undefined;
    toolRequest?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    resource?: undefined;
}>;
/**
 * Reasoning part.
 */
type ReasoningPart = z.infer<typeof ReasoningPartSchema>;
/**
 * Zod schema of media.
 */
declare const MediaSchema: z.ZodObject<{
    /** The media content type. Inferred from data uri if not provided. */
    contentType: z.ZodOptional<z.ZodString>;
    /** A `data:` or `https:` uri containing the media content.  */
    url: z.ZodString;
}, "strip", z.ZodTypeAny, {
    url: string;
    contentType?: string | undefined;
}, {
    url: string;
    contentType?: string | undefined;
}>;
/**
 * Zod schema of a media part.
 */
declare const MediaPartSchema: z.ZodObject<{
    text: z.ZodOptional<z.ZodNever>;
    toolRequest: z.ZodOptional<z.ZodNever>;
    toolResponse: z.ZodOptional<z.ZodNever>;
    data: z.ZodOptional<z.ZodUnknown>;
    metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    reasoning: z.ZodOptional<z.ZodNever>;
    resource: z.ZodOptional<z.ZodNever>;
} & {
    media: z.ZodObject<{
        /** The media content type. Inferred from data uri if not provided. */
        contentType: z.ZodOptional<z.ZodString>;
        /** A `data:` or `https:` uri containing the media content.  */
        url: z.ZodString;
    }, "strip", z.ZodTypeAny, {
        url: string;
        contentType?: string | undefined;
    }, {
        url: string;
        contentType?: string | undefined;
    }>;
}, "strip", z.ZodTypeAny, {
    media: {
        url: string;
        contentType?: string | undefined;
    };
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    text?: undefined;
    toolRequest?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    reasoning?: undefined;
    resource?: undefined;
}, {
    media: {
        url: string;
        contentType?: string | undefined;
    };
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    text?: undefined;
    toolRequest?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    reasoning?: undefined;
    resource?: undefined;
}>;
/**
 * Media part.
 */
type MediaPart = z.infer<typeof MediaPartSchema>;
/**
 * Zod schema of a tool request.
 */
declare const ToolRequestSchema: z.ZodObject<{
    /** The call id or reference for a specific request. */
    ref: z.ZodOptional<z.ZodString>;
    /** The name of the tool to call. */
    name: z.ZodString;
    /** The input parameters for the tool, usually a JSON object. */
    input: z.ZodOptional<z.ZodUnknown>;
    /** Whether the request is a partial chunk. */
    partial: z.ZodOptional<z.ZodBoolean>;
}, "strip", z.ZodTypeAny, {
    name: string;
    ref?: string | undefined;
    input?: unknown;
    partial?: boolean | undefined;
}, {
    name: string;
    ref?: string | undefined;
    input?: unknown;
    partial?: boolean | undefined;
}>;
/** A request for a tool to be called, typically issued by a model. */
type ToolRequest = z.infer<typeof ToolRequestSchema>;
/**
 * Zod schema of a tool request part.
 */
declare const ToolRequestPartSchema: z.ZodObject<{
    text: z.ZodOptional<z.ZodNever>;
    media: z.ZodOptional<z.ZodNever>;
    toolResponse: z.ZodOptional<z.ZodNever>;
    data: z.ZodOptional<z.ZodUnknown>;
    metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    reasoning: z.ZodOptional<z.ZodNever>;
    resource: z.ZodOptional<z.ZodNever>;
} & {
    toolRequest: z.ZodObject<{
        /** The call id or reference for a specific request. */
        ref: z.ZodOptional<z.ZodString>;
        /** The name of the tool to call. */
        name: z.ZodString;
        /** The input parameters for the tool, usually a JSON object. */
        input: z.ZodOptional<z.ZodUnknown>;
        /** Whether the request is a partial chunk. */
        partial: z.ZodOptional<z.ZodBoolean>;
    }, "strip", z.ZodTypeAny, {
        name: string;
        ref?: string | undefined;
        input?: unknown;
        partial?: boolean | undefined;
    }, {
        name: string;
        ref?: string | undefined;
        input?: unknown;
        partial?: boolean | undefined;
    }>;
}, "strip", z.ZodTypeAny, {
    toolRequest: {
        name: string;
        ref?: string | undefined;
        input?: unknown;
        partial?: boolean | undefined;
    };
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    text?: undefined;
    media?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    reasoning?: undefined;
    resource?: undefined;
}, {
    toolRequest: {
        name: string;
        ref?: string | undefined;
        input?: unknown;
        partial?: boolean | undefined;
    };
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    text?: undefined;
    media?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    reasoning?: undefined;
    resource?: undefined;
}>;
/**
 * Tool part.
 */
type ToolRequestPart = z.infer<typeof ToolRequestPartSchema>;
/**
 * Zod schema of a tool response.
 */
declare const ToolResponseSchemaBase: z.ZodObject<{
    /** The call id or reference for a specific request. */
    ref: z.ZodOptional<z.ZodString>;
    /** The name of the tool. */
    name: z.ZodString;
    /** The output data returned from the tool, usually a JSON object. */
    output: z.ZodOptional<z.ZodUnknown>;
}, "strip", z.ZodTypeAny, {
    name: string;
    output?: unknown;
    ref?: string | undefined;
}, {
    name: string;
    output?: unknown;
    ref?: string | undefined;
}>;
/**
 * Tool response part.
 */
type ToolResponse = z.infer<typeof ToolResponseSchemaBase> & {
    content?: Part[];
};
/** Zod schema for a tool response, including optional multipart content. */
declare const ToolResponseSchema: z.ZodType<ToolResponse>;
/**
 * Zod schema of a tool response part.
 */
declare const ToolResponsePartSchema: z.ZodObject<{
    text: z.ZodOptional<z.ZodNever>;
    media: z.ZodOptional<z.ZodNever>;
    toolRequest: z.ZodOptional<z.ZodNever>;
    data: z.ZodOptional<z.ZodUnknown>;
    metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    reasoning: z.ZodOptional<z.ZodNever>;
    resource: z.ZodOptional<z.ZodNever>;
} & {
    toolResponse: z.ZodType<ToolResponse, z.ZodTypeDef, ToolResponse>;
}, "strip", z.ZodTypeAny, {
    toolResponse: {
        name: string;
        output?: unknown;
        ref?: string | undefined;
    } & {
        content?: Part[];
    };
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    text?: undefined;
    media?: undefined;
    toolRequest?: undefined;
    data?: unknown;
    reasoning?: undefined;
    resource?: undefined;
}, {
    toolResponse: {
        name: string;
        output?: unknown;
        ref?: string | undefined;
    } & {
        content?: Part[];
    };
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    text?: undefined;
    media?: undefined;
    toolRequest?: undefined;
    data?: unknown;
    reasoning?: undefined;
    resource?: undefined;
}>;
/**
 * Tool response part.
 */
type ToolResponsePart = z.infer<typeof ToolResponsePartSchema>;
/**
 * Zod schema of a data part.
 */
declare const DataPartSchema: z.ZodObject<{
    text: z.ZodOptional<z.ZodNever>;
    media: z.ZodOptional<z.ZodNever>;
    toolRequest: z.ZodOptional<z.ZodNever>;
    toolResponse: z.ZodOptional<z.ZodNever>;
    metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    reasoning: z.ZodOptional<z.ZodNever>;
    resource: z.ZodOptional<z.ZodNever>;
} & {
    data: z.ZodUnknown;
}, "strip", z.ZodTypeAny, {
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    text?: undefined;
    media?: undefined;
    toolRequest?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    reasoning?: undefined;
    resource?: undefined;
}, {
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    text?: undefined;
    media?: undefined;
    toolRequest?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    reasoning?: undefined;
    resource?: undefined;
}>;
/**
 * Data part.
 */
type DataPart = z.infer<typeof DataPartSchema>;
/**
 * Zod schema of a custom part.
 */
declare const CustomPartSchema: z.ZodObject<{
    text: z.ZodOptional<z.ZodNever>;
    media: z.ZodOptional<z.ZodNever>;
    toolRequest: z.ZodOptional<z.ZodNever>;
    toolResponse: z.ZodOptional<z.ZodNever>;
    data: z.ZodOptional<z.ZodUnknown>;
    metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    reasoning: z.ZodOptional<z.ZodNever>;
    resource: z.ZodOptional<z.ZodNever>;
} & {
    custom: z.ZodRecord<z.ZodString, z.ZodAny>;
}, "strip", z.ZodTypeAny, {
    custom: Record<string, any>;
    metadata?: Record<string, unknown> | undefined;
    text?: undefined;
    media?: undefined;
    toolRequest?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    reasoning?: undefined;
    resource?: undefined;
}, {
    custom: Record<string, any>;
    metadata?: Record<string, unknown> | undefined;
    text?: undefined;
    media?: undefined;
    toolRequest?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    reasoning?: undefined;
    resource?: undefined;
}>;
/**
 * Custom part.
 */
type CustomPart = z.infer<typeof CustomPartSchema>;
/**
 * Zod schema of a resource part.
 */
declare const ResourcePartSchema: z.ZodObject<{
    text: z.ZodOptional<z.ZodNever>;
    media: z.ZodOptional<z.ZodNever>;
    toolRequest: z.ZodOptional<z.ZodNever>;
    toolResponse: z.ZodOptional<z.ZodNever>;
    data: z.ZodOptional<z.ZodUnknown>;
    metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    reasoning: z.ZodOptional<z.ZodNever>;
} & {
    resource: z.ZodObject<{
        uri: z.ZodString;
    }, "strip", z.ZodTypeAny, {
        uri: string;
    }, {
        uri: string;
    }>;
}, "strip", z.ZodTypeAny, {
    resource: {
        uri: string;
    };
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    text?: undefined;
    media?: undefined;
    toolRequest?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    reasoning?: undefined;
}, {
    resource: {
        uri: string;
    };
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    text?: undefined;
    media?: undefined;
    toolRequest?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    reasoning?: undefined;
}>;
/**
 * Resource part.
 */
type ResourcePart = z.infer<typeof ResourcePartSchema>;
/**
 * Zod schema of a message part.
 */
declare const PartSchema: z.ZodUnion<[z.ZodObject<{
    media: z.ZodOptional<z.ZodNever>;
    toolRequest: z.ZodOptional<z.ZodNever>;
    toolResponse: z.ZodOptional<z.ZodNever>;
    data: z.ZodOptional<z.ZodUnknown>;
    metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    reasoning: z.ZodOptional<z.ZodNever>;
    resource: z.ZodOptional<z.ZodNever>;
} & {
    text: z.ZodString;
}, "strip", z.ZodTypeAny, {
    text: string;
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    media?: undefined;
    toolRequest?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    reasoning?: undefined;
    resource?: undefined;
}, {
    text: string;
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    media?: undefined;
    toolRequest?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    reasoning?: undefined;
    resource?: undefined;
}>, z.ZodObject<{
    text: z.ZodOptional<z.ZodNever>;
    toolRequest: z.ZodOptional<z.ZodNever>;
    toolResponse: z.ZodOptional<z.ZodNever>;
    data: z.ZodOptional<z.ZodUnknown>;
    metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    reasoning: z.ZodOptional<z.ZodNever>;
    resource: z.ZodOptional<z.ZodNever>;
} & {
    media: z.ZodObject<{
        /** The media content type. Inferred from data uri if not provided. */
        contentType: z.ZodOptional<z.ZodString>;
        /** A `data:` or `https:` uri containing the media content.  */
        url: z.ZodString;
    }, "strip", z.ZodTypeAny, {
        url: string;
        contentType?: string | undefined;
    }, {
        url: string;
        contentType?: string | undefined;
    }>;
}, "strip", z.ZodTypeAny, {
    media: {
        url: string;
        contentType?: string | undefined;
    };
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    text?: undefined;
    toolRequest?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    reasoning?: undefined;
    resource?: undefined;
}, {
    media: {
        url: string;
        contentType?: string | undefined;
    };
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    text?: undefined;
    toolRequest?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    reasoning?: undefined;
    resource?: undefined;
}>, z.ZodObject<{
    text: z.ZodOptional<z.ZodNever>;
    media: z.ZodOptional<z.ZodNever>;
    toolResponse: z.ZodOptional<z.ZodNever>;
    data: z.ZodOptional<z.ZodUnknown>;
    metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    reasoning: z.ZodOptional<z.ZodNever>;
    resource: z.ZodOptional<z.ZodNever>;
} & {
    toolRequest: z.ZodObject<{
        /** The call id or reference for a specific request. */
        ref: z.ZodOptional<z.ZodString>;
        /** The name of the tool to call. */
        name: z.ZodString;
        /** The input parameters for the tool, usually a JSON object. */
        input: z.ZodOptional<z.ZodUnknown>;
        /** Whether the request is a partial chunk. */
        partial: z.ZodOptional<z.ZodBoolean>;
    }, "strip", z.ZodTypeAny, {
        name: string;
        ref?: string | undefined;
        input?: unknown;
        partial?: boolean | undefined;
    }, {
        name: string;
        ref?: string | undefined;
        input?: unknown;
        partial?: boolean | undefined;
    }>;
}, "strip", z.ZodTypeAny, {
    toolRequest: {
        name: string;
        ref?: string | undefined;
        input?: unknown;
        partial?: boolean | undefined;
    };
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    text?: undefined;
    media?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    reasoning?: undefined;
    resource?: undefined;
}, {
    toolRequest: {
        name: string;
        ref?: string | undefined;
        input?: unknown;
        partial?: boolean | undefined;
    };
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    text?: undefined;
    media?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    reasoning?: undefined;
    resource?: undefined;
}>, z.ZodObject<{
    text: z.ZodOptional<z.ZodNever>;
    media: z.ZodOptional<z.ZodNever>;
    toolRequest: z.ZodOptional<z.ZodNever>;
    data: z.ZodOptional<z.ZodUnknown>;
    metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    reasoning: z.ZodOptional<z.ZodNever>;
    resource: z.ZodOptional<z.ZodNever>;
} & {
    toolResponse: z.ZodType<ToolResponse, z.ZodTypeDef, ToolResponse>;
}, "strip", z.ZodTypeAny, {
    toolResponse: {
        name: string;
        output?: unknown;
        ref?: string | undefined;
    } & {
        content?: Part[];
    };
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    text?: undefined;
    media?: undefined;
    toolRequest?: undefined;
    data?: unknown;
    reasoning?: undefined;
    resource?: undefined;
}, {
    toolResponse: {
        name: string;
        output?: unknown;
        ref?: string | undefined;
    } & {
        content?: Part[];
    };
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    text?: undefined;
    media?: undefined;
    toolRequest?: undefined;
    data?: unknown;
    reasoning?: undefined;
    resource?: undefined;
}>, z.ZodObject<{
    text: z.ZodOptional<z.ZodNever>;
    media: z.ZodOptional<z.ZodNever>;
    toolRequest: z.ZodOptional<z.ZodNever>;
    toolResponse: z.ZodOptional<z.ZodNever>;
    metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    reasoning: z.ZodOptional<z.ZodNever>;
    resource: z.ZodOptional<z.ZodNever>;
} & {
    data: z.ZodUnknown;
}, "strip", z.ZodTypeAny, {
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    text?: undefined;
    media?: undefined;
    toolRequest?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    reasoning?: undefined;
    resource?: undefined;
}, {
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    text?: undefined;
    media?: undefined;
    toolRequest?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    reasoning?: undefined;
    resource?: undefined;
}>, z.ZodObject<{
    text: z.ZodOptional<z.ZodNever>;
    media: z.ZodOptional<z.ZodNever>;
    toolRequest: z.ZodOptional<z.ZodNever>;
    toolResponse: z.ZodOptional<z.ZodNever>;
    data: z.ZodOptional<z.ZodUnknown>;
    metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    reasoning: z.ZodOptional<z.ZodNever>;
    resource: z.ZodOptional<z.ZodNever>;
} & {
    custom: z.ZodRecord<z.ZodString, z.ZodAny>;
}, "strip", z.ZodTypeAny, {
    custom: Record<string, any>;
    metadata?: Record<string, unknown> | undefined;
    text?: undefined;
    media?: undefined;
    toolRequest?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    reasoning?: undefined;
    resource?: undefined;
}, {
    custom: Record<string, any>;
    metadata?: Record<string, unknown> | undefined;
    text?: undefined;
    media?: undefined;
    toolRequest?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    reasoning?: undefined;
    resource?: undefined;
}>, z.ZodObject<{
    text: z.ZodOptional<z.ZodNever>;
    media: z.ZodOptional<z.ZodNever>;
    toolRequest: z.ZodOptional<z.ZodNever>;
    toolResponse: z.ZodOptional<z.ZodNever>;
    data: z.ZodOptional<z.ZodUnknown>;
    metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    resource: z.ZodOptional<z.ZodNever>;
} & {
    reasoning: z.ZodString;
}, "strip", z.ZodTypeAny, {
    reasoning: string;
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    text?: undefined;
    media?: undefined;
    toolRequest?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    resource?: undefined;
}, {
    reasoning: string;
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    text?: undefined;
    media?: undefined;
    toolRequest?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    resource?: undefined;
}>, z.ZodObject<{
    text: z.ZodOptional<z.ZodNever>;
    media: z.ZodOptional<z.ZodNever>;
    toolRequest: z.ZodOptional<z.ZodNever>;
    toolResponse: z.ZodOptional<z.ZodNever>;
    data: z.ZodOptional<z.ZodUnknown>;
    metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    reasoning: z.ZodOptional<z.ZodNever>;
} & {
    resource: z.ZodObject<{
        uri: z.ZodString;
    }, "strip", z.ZodTypeAny, {
        uri: string;
    }, {
        uri: string;
    }>;
}, "strip", z.ZodTypeAny, {
    resource: {
        uri: string;
    };
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    text?: undefined;
    media?: undefined;
    toolRequest?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    reasoning?: undefined;
}, {
    resource: {
        uri: string;
    };
    metadata?: Record<string, unknown> | undefined;
    custom?: Record<string, unknown> | undefined;
    text?: undefined;
    media?: undefined;
    toolRequest?: undefined;
    toolResponse?: undefined;
    data?: unknown;
    reasoning?: undefined;
}>]>;
/**
 * Message part.
 */
type Part = z.infer<typeof PartSchema>;
/** Zod schema for a multipart tool response containing structured output, content parts, and metadata. */
declare const MultipartToolResponseSchema: z.ZodObject<{
    output: z.ZodOptional<z.ZodUnknown>;
    content: z.ZodOptional<z.ZodArray<z.ZodUnion<[z.ZodObject<{
        media: z.ZodOptional<z.ZodNever>;
        toolRequest: z.ZodOptional<z.ZodNever>;
        toolResponse: z.ZodOptional<z.ZodNever>;
        data: z.ZodOptional<z.ZodUnknown>;
        metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        reasoning: z.ZodOptional<z.ZodNever>;
        resource: z.ZodOptional<z.ZodNever>;
    } & {
        text: z.ZodString;
    }, "strip", z.ZodTypeAny, {
        text: string;
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        reasoning?: undefined;
        resource?: undefined;
    }, {
        text: string;
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        reasoning?: undefined;
        resource?: undefined;
    }>, z.ZodObject<{
        text: z.ZodOptional<z.ZodNever>;
        toolRequest: z.ZodOptional<z.ZodNever>;
        toolResponse: z.ZodOptional<z.ZodNever>;
        data: z.ZodOptional<z.ZodUnknown>;
        metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        reasoning: z.ZodOptional<z.ZodNever>;
        resource: z.ZodOptional<z.ZodNever>;
    } & {
        media: z.ZodObject<{
            /** The media content type. Inferred from data uri if not provided. */
            contentType: z.ZodOptional<z.ZodString>;
            /** A `data:` or `https:` uri containing the media content.  */
            url: z.ZodString;
        }, "strip", z.ZodTypeAny, {
            url: string;
            contentType?: string | undefined;
        }, {
            url: string;
            contentType?: string | undefined;
        }>;
    }, "strip", z.ZodTypeAny, {
        media: {
            url: string;
            contentType?: string | undefined;
        };
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        reasoning?: undefined;
        resource?: undefined;
    }, {
        media: {
            url: string;
            contentType?: string | undefined;
        };
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        reasoning?: undefined;
        resource?: undefined;
    }>, z.ZodObject<{
        text: z.ZodOptional<z.ZodNever>;
        media: z.ZodOptional<z.ZodNever>;
        toolResponse: z.ZodOptional<z.ZodNever>;
        data: z.ZodOptional<z.ZodUnknown>;
        metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        reasoning: z.ZodOptional<z.ZodNever>;
        resource: z.ZodOptional<z.ZodNever>;
    } & {
        toolRequest: z.ZodObject<{
            /** The call id or reference for a specific request. */
            ref: z.ZodOptional<z.ZodString>;
            /** The name of the tool to call. */
            name: z.ZodString;
            /** The input parameters for the tool, usually a JSON object. */
            input: z.ZodOptional<z.ZodUnknown>;
            /** Whether the request is a partial chunk. */
            partial: z.ZodOptional<z.ZodBoolean>;
        }, "strip", z.ZodTypeAny, {
            name: string;
            ref?: string | undefined;
            input?: unknown;
            partial?: boolean | undefined;
        }, {
            name: string;
            ref?: string | undefined;
            input?: unknown;
            partial?: boolean | undefined;
        }>;
    }, "strip", z.ZodTypeAny, {
        toolRequest: {
            name: string;
            ref?: string | undefined;
            input?: unknown;
            partial?: boolean | undefined;
        };
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        reasoning?: undefined;
        resource?: undefined;
    }, {
        toolRequest: {
            name: string;
            ref?: string | undefined;
            input?: unknown;
            partial?: boolean | undefined;
        };
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        reasoning?: undefined;
        resource?: undefined;
    }>, z.ZodObject<{
        text: z.ZodOptional<z.ZodNever>;
        media: z.ZodOptional<z.ZodNever>;
        toolRequest: z.ZodOptional<z.ZodNever>;
        data: z.ZodOptional<z.ZodUnknown>;
        metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        reasoning: z.ZodOptional<z.ZodNever>;
        resource: z.ZodOptional<z.ZodNever>;
    } & {
        toolResponse: z.ZodType<ToolResponse, z.ZodTypeDef, ToolResponse>;
    }, "strip", z.ZodTypeAny, {
        toolResponse: {
            name: string;
            output?: unknown;
            ref?: string | undefined;
        } & {
            content?: Part[];
        };
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        data?: unknown;
        reasoning?: undefined;
        resource?: undefined;
    }, {
        toolResponse: {
            name: string;
            output?: unknown;
            ref?: string | undefined;
        } & {
            content?: Part[];
        };
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        data?: unknown;
        reasoning?: undefined;
        resource?: undefined;
    }>, z.ZodObject<{
        text: z.ZodOptional<z.ZodNever>;
        media: z.ZodOptional<z.ZodNever>;
        toolRequest: z.ZodOptional<z.ZodNever>;
        toolResponse: z.ZodOptional<z.ZodNever>;
        metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        reasoning: z.ZodOptional<z.ZodNever>;
        resource: z.ZodOptional<z.ZodNever>;
    } & {
        data: z.ZodUnknown;
    }, "strip", z.ZodTypeAny, {
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        reasoning?: undefined;
        resource?: undefined;
    }, {
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        reasoning?: undefined;
        resource?: undefined;
    }>, z.ZodObject<{
        text: z.ZodOptional<z.ZodNever>;
        media: z.ZodOptional<z.ZodNever>;
        toolRequest: z.ZodOptional<z.ZodNever>;
        toolResponse: z.ZodOptional<z.ZodNever>;
        data: z.ZodOptional<z.ZodUnknown>;
        metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        reasoning: z.ZodOptional<z.ZodNever>;
        resource: z.ZodOptional<z.ZodNever>;
    } & {
        custom: z.ZodRecord<z.ZodString, z.ZodAny>;
    }, "strip", z.ZodTypeAny, {
        custom: Record<string, any>;
        metadata?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        reasoning?: undefined;
        resource?: undefined;
    }, {
        custom: Record<string, any>;
        metadata?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        reasoning?: undefined;
        resource?: undefined;
    }>, z.ZodObject<{
        text: z.ZodOptional<z.ZodNever>;
        media: z.ZodOptional<z.ZodNever>;
        toolRequest: z.ZodOptional<z.ZodNever>;
        toolResponse: z.ZodOptional<z.ZodNever>;
        data: z.ZodOptional<z.ZodUnknown>;
        metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        resource: z.ZodOptional<z.ZodNever>;
    } & {
        reasoning: z.ZodString;
    }, "strip", z.ZodTypeAny, {
        reasoning: string;
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        resource?: undefined;
    }, {
        reasoning: string;
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        resource?: undefined;
    }>, z.ZodObject<{
        text: z.ZodOptional<z.ZodNever>;
        media: z.ZodOptional<z.ZodNever>;
        toolRequest: z.ZodOptional<z.ZodNever>;
        toolResponse: z.ZodOptional<z.ZodNever>;
        data: z.ZodOptional<z.ZodUnknown>;
        metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        reasoning: z.ZodOptional<z.ZodNever>;
    } & {
        resource: z.ZodObject<{
            uri: z.ZodString;
        }, "strip", z.ZodTypeAny, {
            uri: string;
        }, {
            uri: string;
        }>;
    }, "strip", z.ZodTypeAny, {
        resource: {
            uri: string;
        };
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        reasoning?: undefined;
    }, {
        resource: {
            uri: string;
        };
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        reasoning?: undefined;
    }>]>, "many">>;
    metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
}, "strip", z.ZodTypeAny, {
    output?: unknown;
    metadata?: Record<string, unknown> | undefined;
    content?: ({
        text: string;
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        reasoning?: undefined;
        resource?: undefined;
    } | {
        media: {
            url: string;
            contentType?: string | undefined;
        };
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        reasoning?: undefined;
        resource?: undefined;
    } | {
        toolRequest: {
            name: string;
            ref?: string | undefined;
            input?: unknown;
            partial?: boolean | undefined;
        };
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        reasoning?: undefined;
        resource?: undefined;
    } | {
        toolResponse: {
            name: string;
            output?: unknown;
            ref?: string | undefined;
        } & {
            content?: Part[];
        };
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        data?: unknown;
        reasoning?: undefined;
        resource?: undefined;
    } | {
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        reasoning?: undefined;
        resource?: undefined;
    } | {
        custom: Record<string, any>;
        metadata?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        reasoning?: undefined;
        resource?: undefined;
    } | {
        reasoning: string;
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        resource?: undefined;
    } | {
        resource: {
            uri: string;
        };
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        reasoning?: undefined;
    })[] | undefined;
}, {
    output?: unknown;
    metadata?: Record<string, unknown> | undefined;
    content?: ({
        text: string;
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        reasoning?: undefined;
        resource?: undefined;
    } | {
        media: {
            url: string;
            contentType?: string | undefined;
        };
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        reasoning?: undefined;
        resource?: undefined;
    } | {
        toolRequest: {
            name: string;
            ref?: string | undefined;
            input?: unknown;
            partial?: boolean | undefined;
        };
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        reasoning?: undefined;
        resource?: undefined;
    } | {
        toolResponse: {
            name: string;
            output?: unknown;
            ref?: string | undefined;
        } & {
            content?: Part[];
        };
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        data?: unknown;
        reasoning?: undefined;
        resource?: undefined;
    } | {
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        reasoning?: undefined;
        resource?: undefined;
    } | {
        custom: Record<string, any>;
        metadata?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        reasoning?: undefined;
        resource?: undefined;
    } | {
        reasoning: string;
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        resource?: undefined;
    } | {
        resource: {
            uri: string;
        };
        metadata?: Record<string, unknown> | undefined;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        reasoning?: undefined;
    })[] | undefined;
}>;
/** A multipart tool response containing structured output, content parts, and metadata. */
type MultipartToolResponse = z.infer<typeof MultipartToolResponseSchema>;

export { type CustomPart, CustomPartSchema, type DataPart, DataPartSchema, type MediaPart, MediaPartSchema, MediaSchema, type MultipartToolResponse, MultipartToolResponseSchema, type Part, PartSchema, type ReasoningPart, ReasoningPartSchema, type ResourcePart, ResourcePartSchema, type TextPart, TextPartSchema, type ToolRequest, type ToolRequestPart, ToolRequestPartSchema, ToolRequestSchema, type ToolResponse, type ToolResponsePart, ToolResponsePartSchema, ToolResponseSchema };