import { EventTraceExtractor } from "../extractor";
import { TracerWrapper } from "../../tracer-wrapper";
import { SpanContextWrapper } from "../../span-context-wrapper";
export declare class AppSyncEventTraceExtractor implements EventTraceExtractor {
    private tracerWrapper;
    private httpEventExtractor;
    constructor(tracerWrapper: TracerWrapper);
    extract(event: any): SpanContextWrapper | null;
}
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