import { Tracer, Context, TraceId } from 'zipkin';
export declare type Tracer = Tracer;
export declare type TracerService = 'zipkin';
export interface CreateTracerOptions {
    context: Context<TraceId>;
    headers?: object;
    host?: string;
    port?: string;
    sampleFrequency?: number;
    scheme?: string;
}
export declare function createTracer({ context, headers, host, port, scheme, sampleFrequency, }: CreateTracerOptions): Tracer;