export interface TraceContext {
    readonly traceId: string;
    readonly spanId: string;
    readonly flags: string;
}
export type TraceparentReason = "present" | "missing" | "invalid";
export interface EnsuredTraceContext {
    readonly traceparent: string;
    readonly traceId: string;
    readonly degraded: boolean;
    readonly reason: TraceparentReason;
}
export declare function parseTraceparent(value: string | undefined | null): TraceContext | null;
export declare function formatTraceparent(ctx: TraceContext): string;
export declare function mintTraceparent(): string;
export declare function extractTraceId(value: string | undefined | null): string | null;
export declare function ensureTraceparent(value: string | undefined | null): EnsuredTraceContext;
export declare function childTraceparent(value: string | undefined | null): string | null;
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