export interface HackMdConfig {
    apiToken?: string;
    apiUrl: string;
}
export interface GitHubConfig {
    apiToken?: string;
    apiUrl: string;
    statePath?: string;
}
export interface LoadConfigOptions {
    requireApiToken?: boolean;
}
export interface LoadEnvironmentOptions {
    env?: NodeJS.ProcessEnv;
    envFilePath?: string;
}
export declare function loadEnvironment(options?: LoadEnvironmentOptions): NodeJS.ProcessEnv;
export declare function loadConfig(env?: NodeJS.ProcessEnv, options?: LoadConfigOptions): HackMdConfig;
export declare function loadGitHubConfig(env?: NodeJS.ProcessEnv): GitHubConfig;
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