Interface NormalizedSpan

interface NormalizedSpan {
    costUsd?: number;
    durationMs: number;
    endTimeMs: number;
    error?: { message: string; stack?: string; type: string };
    input?: unknown;
    kind:
        | "unknown"
        | "retrieval"
        | "guard"
        | "chain"
        | "llm_call"
        | "tool_call"
        | "agent_step"
        | "embedding"
        | "rerank";
    metadata?: Record<string, unknown>;
    model?: string;
    name: string;
    output?: unknown;
    parentSpanId?: string;
    provider?: string;
    spanId: string;
    startTimeMs: number;
    status: TraceStatus;
    tokenUsage?: { completion: number; prompt: number; total: number };
    toolName?: string;
    toolSuccess?: boolean;
    traceId: string;
}