/**
 * Fetch IMO numbers for a specific company from MongoDB
 * @param companyName The name of the company to fetch IMO numbers for
 * @returns Array of IMO numbers as strings
 */
export declare function fetchCompanyImoNumbers(companyName: string): Promise<string[]>;
/**
 * Check if IMO filtering should be bypassed for admin companies
 * @param companyName - Name of the company to check
 * @returns True if filtering should be bypassed
 */
export declare function shouldBypassImoFiltering(companyName: string): boolean;
/**
 * Validate if an IMO number is valid for the current company
 * @param imoNumber - IMO number to validate (string or number)
 * @param companyName - Company name to fetch IMO numbers for
 * @returns Promise that resolves to boolean indicating if IMO is valid
 */
export declare function isValidImoForCompany(imoNumber: string | number, companyName: string): Promise<boolean>;