import { Result } from './result';
import { System } from './system';
export declare enum SystemApiKeyErrorName {
    SYSTEM_API_KEY_NOT_FOUND = "systemApiKeyNotFound"
}
export interface SystemApiKeyErrorNotFound {
    type: SystemApiKeyErrorName.SYSTEM_API_KEY_NOT_FOUND;
}
export type SystemApiKeyErrorInfo = SystemApiKeyErrorNotFound;
export declare enum ConfigLocation {
    USER = "user",
    APP = "app"
}
export declare function isValidApiKey(apiKey: unknown): apiKey is string;
export declare function isValidApiKeyName(apiKeyName: string): boolean;
export declare function castLocation(location: string): Result<ConfigLocation>;
export declare function findApiKeyConfigPathAsync(sys: System, location: ConfigLocation): Promise<string>;
export declare function readGlobalApiKeyAsync(sys: System, apiKeyName?: string | null): Promise<Result<string>>;
export declare function readApiKeyAsync(sys: System, apiKeyName?: string | null): Promise<Result<string>>;
export declare function writeApiKeyAsync(sys: System, location: ConfigLocation, apiKey: string, apiKeyName?: string | null): Promise<void>;