export declare function generateCustomerNumber(): string;
export declare function generateContractNumber(type: string): string;
export declare function paginate(page?: number, limit?: number): {
    skip: number;
    take: number;
};
export declare function buildPaginationResponse(page: number, limit: number, total: number): {
    page: number;
    limit: number;
    total: number;
    totalPages: number;
};
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