import type { NewoEnvironment, CustomerConfig, MultiCustomerConfig } from './types.js';
/**
 * Async version of customer configuration parsing that supports API key array initialization
 */
export declare function parseCustomerConfigAsync(env: NewoEnvironment, verbose?: boolean): Promise<MultiCustomerConfig>;
/**
 * List all available customer IDNs
 */
export declare function listCustomers(config: MultiCustomerConfig): string[];
/**
 * Get customer configuration by IDN
 */
export declare function getCustomer(config: MultiCustomerConfig, customerIdn: string): CustomerConfig | null;
/**
 * Get default customer or throw error if none
 */
export declare function getDefaultCustomer(config: MultiCustomerConfig): CustomerConfig;
/**
 * Attempt to get default customer, return null if multiple customers exist without default
 */
export declare function tryGetDefaultCustomer(config: MultiCustomerConfig): CustomerConfig | null;
/**
 * Get all customers as an array
 */
export declare function getAllCustomers(config: MultiCustomerConfig): CustomerConfig[];
/**
 * Validate customer configuration
 */
export declare function validateCustomerConfig(config: MultiCustomerConfig): void;
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