import type { pino } from 'pino';
export declare class MigrationLogger {
    private logger;
    constructor(logger: pino.Logger);
    logSessionProcessingInfo(totalSessions: number, toMigrate: number): void;
    logNoSessionsToMigrate(): void;
    logBackupCreation(total: number, backup: number): void;
    logValidationCompletion(result: {
        valid: boolean;
        sourceSessions: number;
        targetSessions: number;
        missingSessions: string[];
        extraSessions: string[];
    }): void;
    logRestoreStart(sessionCount: number): void;
    logValidationStart(): void;
    logBackupStart(): void;
}
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