import { KeyValue, Span, SpanStatus } from "../../../types/otlp";
export type InProgressSpan = Omit<Span, "endTimeUnixNano">;
export declare function startSpan(name: string): InProgressSpan;
export declare function endSpan(span: InProgressSpan, status: SpanStatus | undefined, durationNano: number | undefined): Span;
/**
 * Adds an event to a span. Can optionally accept the events timestamp and attributes for the event.
 * The timestamp needs to be specified as nanoseconds since unix epoch in string format.
 */
export declare function addSpanEvent(span: InProgressSpan, name: string, attributesOrTs?: string | KeyValue[] | undefined, attributes?: KeyValue[] | undefined): void;
export declare function setSpanStatus(span: InProgressSpan, code: SpanStatus["code"], message?: string): void;