/**
 * Irreversible: permanently deletes ALL events from the primary calendar while
 * keeping the calendar itself. The API only accepts the primary calendar; for
 * a secondary calendar, delete_calendar is the whole-calendar analog.
 */
export declare const clear_calendar: import("../../../lib/operation.js").Operation<import("@googleapis/calendar").calendar_v3.Calendar, import("zod").ZodObject<{
    calendarId: import("zod").ZodOptional<import("zod").ZodString>;
}, import("zod/v4/core").$strict>, import("zod").ZodObject<{
    calendarId: import("zod").ZodString;
}, import("zod/v4/core").$strip>>;
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