import { Context, ContextManager, Span, SpanOptions, Tracer } from "@opentelemetry/api";
import { SpanContextSyncBehaviour } from "./types";
/**
 * EmbraceNativeTracer implements a Tracer over the native Embrace Android and iOS SDKs.
 *
 * Communication with the native modules is asynchronous while the @opentelemetry/api interfaces are synchronous so spans
 * are returned immediately as simple objects that contain an ID for further communication with the native side.
 *
 * Since the notion of active context differs on the native side this tracer has its own context manager to handle the
 * active context on the JS side which can optionally be configured as the global context manager.
 *
 * The JS side of this implementation is modelled after [opentelemetry-sdk-trace-base](https://github.com/open-telemetry/opentelemetry-js/tree/main/packages/opentelemetry-sdk-trace-base)
 */
declare class EmbraceNativeTracer implements Tracer {
    private readonly name;
    private readonly version;
    private readonly schemaUrl;
    private readonly contextManager;
    private readonly spanContextSyncBehaviour;
    constructor(contextManager: ContextManager, spanContextSyncBehaviour: SpanContextSyncBehaviour, name: string, version: string, schemaUrl: string);
    startSpan(name: string, options?: SpanOptions, context?: Context): Span;
    startActiveSpan<F extends (span: Span) => ReturnType<F>>(name: string, fn: F): ReturnType<F>;
    startActiveSpan<F extends (span: Span) => ReturnType<F>>(name: string, opts: SpanOptions, fn: F): ReturnType<F>;
    startActiveSpan<F extends (span: Span) => ReturnType<F>>(name: string, opts: SpanOptions, ctx: Context, fn: F): ReturnType<F>;
}
export { EmbraceNativeTracer };