import * as i0 from "@angular/core";
export declare abstract class Logger {
    log: any;
    warn: any;
    error: any;
}
export declare class LoggerService implements Logger {
    log(value: any, ...rest: any[]): any;
    error(value: any, ...rest: any[]): any;
    warn(value: any, ...rest: any[]): any;
    static ɵfac: i0.ɵɵFactoryDeclaration<LoggerService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<LoggerService>;
}
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