import { Router } from '@angular/router';
import { SegmentEventStrict, SegmentEventName, SegmentEvent } from '../types/segment.type';
import * as i0 from "@angular/core";
/** Provide Segment analytics API with strict event typing */
export declare class SegmentService {
    private writeKey;
    private Router;
    /** Analytics API instance */
    private get _analytics();
    /** Store previous route name */
    private _referrer;
    /** Inject Segment write key and initialise route tracking */
    constructor(writeKey: string, Router: Router);
    /** Call Analytics track method */
    private _track;
    /** Call Analytics page method */
    page(): void;
    /** Call Analytics track method with strict event type */
    track(event_: SegmentEventStrict<SegmentEventName>): void;
    /** Callan Analytics identify method */
    identify(props_: {
        [key: string]: any;
    }): void;
    /** Call Analytics track method with any event type */
    trackCustom(event_: SegmentEvent): void;
    static ɵfac: i0.ɵɵFactoryDef<SegmentService, never>;
    static ɵprov: i0.ɵɵInjectableDef<SegmentService>;
}
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