export type OtelSpan = {
    setAttribute(key: string, value: unknown): void;
    addEvent(name: string, attrs: Record<string, unknown>): void;
    end(): void;
};
export interface OtelSink {
    startSpan(name: string, attrs: Record<string, unknown>): OtelSpan;
    recordException(span: ReturnType<OtelSink["startSpan"]>, error: unknown): void;
}
export declare const noopOtelSink: OtelSink;
export declare function bindOtelSpan(value: object, span: OtelSpan): void;
export declare function getBoundOtelSpan(value: unknown): OtelSpan | undefined;
export declare function activateOtelSpan(span: OtelSpan): () => void;
export declare function getActiveOtelSpan(): OtelSpan | undefined;
export declare function activateOtelSink(sink: OtelSink | undefined): () => void;
export declare function getActiveOtelSink(): OtelSink | undefined;
export declare function safeStartSpan(sink: OtelSink | undefined, name: string, attrs: Record<string, unknown>): OtelSpan;
export declare function safeSetAttribute(span: OtelSpan, key: string, value: unknown): void;
export declare function safeAddEvent(span: OtelSpan | undefined, name: string, attrs?: Record<string, unknown>): void;
export declare function safeRecordException(sink: OtelSink | undefined, span: OtelSpan, error: unknown): void;
export declare function safeEndSpan(span: OtelSpan): void;