import { Configuration, ConfigurationSource, IConfigLike } from '@spinajs/configuration-common';
export declare abstract class BaseFileSource extends ConfigurationSource {
    protected RunApp?: string | undefined;
    protected CustomConfigPaths?: string[] | undefined;
    protected appBaseDir?: string | undefined;
    protected Env?: string | undefined;
    /**
     * Configuration base dir, where to look for app config
     */
    BaseDir: string;
    protected CommonDirs: string[];
    protected BasePath: string;
    get Order(): number;
    constructor(RunApp?: string | undefined, CustomConfigPaths?: string[] | undefined, appBaseDir?: string | undefined, Env?: string | undefined);
    protected load(extension: string, callback: (file: string) => Promise<IConfigLike>): Promise<{}>;
    protected getEnvironment(config: Configuration): string;
}
export declare class JsFileSource extends BaseFileSource {
    Load(config: Configuration): Promise<IConfigLike>;
}
export declare class JsonFileSource extends BaseFileSource {
    Load(config: Configuration): Promise<IConfigLike>;
}
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