import 'reflect-metadata';
export declare abstract class ExtensionBase<C = any> {
    readonly moduleName: string;
    onActivate?(): Promise<void>;
    private config?;
    private activated;
    activate(): Promise<void>;
    constructor(config: C, moduleName: string);
    getExtensionId(): string | undefined;
    protected getConfig(): C | undefined;
    protected getLogger(): import("tslog/dist/types/Logger").Logger;
}