import { z } from 'zod';
/**
 * Advanced rules configured for an account that evaluate incoming messages
 * against specific matching criteria (like sender, subject, or size). When a
 * message matches, filters automatically trigger actions such as adding or
 * removing labels, or forwarding the email to a specified address.
 *
 * Field docs use `.describe()` so they reach the wire JSON Schema an MCP client
 * reads.
 *
 * @see https://developers.google.com/workspace/gmail/api/guides
 */
export declare const Filter: z.ZodObject<{
    id: z.ZodString;
    criteria: z.ZodObject<{
        from: z.ZodOptional<z.ZodString>;
        to: z.ZodOptional<z.ZodString>;
        subject: z.ZodOptional<z.ZodString>;
        query: z.ZodOptional<z.ZodString>;
        negatedQuery: z.ZodOptional<z.ZodString>;
        hasAttachment: z.ZodOptional<z.ZodBoolean>;
        excludeChats: z.ZodOptional<z.ZodBoolean>;
        size: z.ZodOptional<z.ZodNumber>;
        sizeComparison: z.ZodOptional<z.ZodEnum<{
            larger: "larger";
            smaller: "smaller";
        }>>;
    }, z.core.$strict>;
    action: z.ZodObject<{
        addLabelIds: z.ZodOptional<z.ZodArray<z.ZodString>>;
        removeLabelIds: z.ZodOptional<z.ZodArray<z.ZodString>>;
        forward: z.ZodOptional<z.ZodEmail>;
    }, z.core.$strict>;
}, z.core.$strip>;
export type Filter = z.infer<typeof Filter>;
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