import type { NodeType } from './node';
export { parseUsage, type ParsedUsage } from '../openai/usage';
/**
 * Extracts LLM-relevant fields from a GenerationSpanData or ResponseSpanData.
 * @param spanData - The span data object (must have type 'generation' or 'response').
 * @returns A flat record of LLM span parameters.
 */
export declare function extractLlmData(spanData: Record<string, unknown>): Record<string, unknown>;
/**
 * Extracts tool-relevant fields from a FunctionSpanData or GuardrailSpanData.
 * @param spanData - The span data object (must have type 'function' or 'guardrail').
 * @returns A flat record of tool span parameters.
 */
export declare function extractToolData(spanData: Record<string, unknown>): Record<string, unknown>;
/**
 * Extracts workflow-relevant fields from an AgentSpanData, HandoffSpanData, or CustomSpanData.
 * @param spanData - The span data object (must have type 'agent', 'handoff', or 'custom').
 * @returns A flat record of workflow span parameters.
 */
export declare function extractWorkflowData(spanData: Record<string, unknown>): Record<string, unknown>;
/**
 * Extracts span parameters from a GalileoCustomSpanData, delegating to the
 * inner galileoSpan for input, output, metadata, tags, statusCode, and type.
 *
 * @param spanData - The span data object (must have __galileoCustom: true).
 * @returns The effective node type and extracted parameters.
 */
export declare function extractGalileoCustomData(spanData: Record<string, unknown>): {
    nodeType: NodeType;
    params: Record<string, unknown>;
};