import { Attributes, Span, Tracer } from "@opentelemetry/api";
export type Protocol = "grpc" | "http/protobuf";
export declare function initTelemetry(defaultServiceName?: string, defaultEndpoint?: string, defaultProtocol?: Protocol, defaultConnectorName?: string, defaultConnectorVersion?: string): void;
export declare function isInitialized(): boolean;
export declare const USER_VISIBLE_SPAN_ATTRIBUTE: Attributes;
export declare function withActiveSpan<TReturn>(tracer: Tracer, name: string, func: (span: Span) => TReturn, attributes?: Attributes): TReturn;
export declare function withInternalActiveSpan<TReturn>(tracer: Tracer, name: string, func: (span: Span) => TReturn, attributes?: Attributes): TReturn;
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