import { z } from 'zod';
export declare const sessionUsageSnapshotSchema: z.ZodObject<{
    model: z.ZodString;
    usage: z.ZodObject<{
        inputTokens: z.ZodNumber;
        outputTokens: z.ZodNumber;
        cacheCreationInputTokens: z.ZodNumber;
        cacheReadInputTokens: z.ZodNumber;
        costUsd: z.ZodNumber;
    }, z.core.$strip>;
}, z.core.$strip>;
export type SessionUsageSnapshot = z.infer<typeof sessionUsageSnapshotSchema>;
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