import { Context } from '@opentelemetry/api';
import { ReadableSpan } from './export/ReadableSpan';
import { Span } from './Span';
import { SpanProcessor } from './SpanProcessor';
/** No-op implementation of SpanProcessor */
export declare class NoopSpanProcessor implements SpanProcessor {
    onStart(_span: Span, _context: Context): void;
    onEnd(_span: ReadableSpan): void;
    shutdown(): Promise<void>;
    forceFlush(): Promise<void>;
}