/**
 * The trace a caller is part of, read from a W3C `traceparent` value.
 * See https://www.w3.org/TR/trace-context/#traceparent-header.
 */
export declare class TraceParent {
    readonly traceId: string;
    readonly parentSpanId: string;
    readonly isSampled: boolean;
    /**
     * @param traceId The trace id, in the UUID form Pristine uses for `Trace.id`
     * (`4bf92f35-77b3-4da6-a3ce-929d0e0e4736` for the W3C `4bf92f3577b34da6a3ce929d0e0e4736`).
     * @param parentSpanId The id of the caller's span (16 lowercase hex characters).
     * @param isSampled Whether the caller recorded its part of the trace (the `sampled` flag).
     */
    constructor(traceId: string, parentSpanId: string, isSampled: boolean);
}