import { Token } from './context-vars';
import { Span } from './spans';
import { Trace } from './traces';
/**
 * Manages the current trace and span context
 */
export declare class Scope {
    /**
     * Get the current span, if any
     */
    static getCurrentSpan(): Span<any> | null;
    /**
     * Set the current span
     * @param span The span to set as current
     * @returns A token that can be used to reset the current span
     */
    static setCurrentSpan(span: Span<any> | null): Token<Span<any> | null | undefined>;
    /**
     * Reset the current span using a token from a previous setCurrentSpan() call
     * @param token The token from a previous setCurrentSpan() call
     */
    static resetCurrentSpan(token: Token<Span<any> | null | undefined>): void;
    /**
     * Get the current trace, if any
     */
    static getCurrentTrace(): Trace | null;
    /**
     * Set the current trace
     * @param trace The trace to set as current
     * @returns A token that can be used to reset the current trace
     */
    static setCurrentTrace(trace: Trace | null): Token<Trace | null | undefined>;
    /**
     * Reset the current trace using a token from a previous setCurrentTrace() call
     * @param token The token from a previous setCurrentTrace() call
     */
    static resetCurrentTrace(token: Token<Trace | null>): void;
}