/**
 * apiKey callback definition
 * @callback apiKeyCallback
 * @returns {string} - The apiKey to use
 */
/**
 * Validates host and apiKey parameters, throws if invalid
 * @param hostUrl
 * @param apiKey
 */
export declare function validateInstantMeiliSearchParams(hostUrl: string, apiKey: string | (() => string)): void;
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