/**
 * Use global variables to determine whether the container cold started
 * and if the start was proactively initialized
 * On the first container run, isColdStartSet and functionDidColdStart are true
 * For subsequent executions isColdStartSet will be true and functionDidColdStart will be false
 */
export declare function setSandboxInit(initTime: number, invocationStartTime: number): void;
export declare function didFunctionColdStart(): boolean;
export declare function isProactiveInitialization(): boolean;
export declare function getSandboxInitTags(): string[];
/**
 * Checks if the Lambda function is running in managed instances mode.
 * In managed instances mode, we should not create cold start tracing spans
 * as the tracer library handles this independently.
 * @returns true if running in managed instances mode, false otherwise
 */
export declare function isManagedInstancesMode(): boolean;
/**
 * Checks if the Lambda function is running with provisioned concurrency.
 * With provisioned concurrency, containers are pre-warmed before invocations,
 * so the gap between initialization and invocation can be very large (minutes or hours).
 * Cold start spans created from pre-warm module load times would have inflated durations
 * and are not useful in the context of the actual invocation.
 * @returns true if running with provisioned concurrency, false otherwise
 */
export declare function isProvisionedConcurrency(): boolean;
export declare function _resetColdStart(): void;
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