optional createdAt: Date;

optional datasetInput: string;

optional datasetMetadata: Record<string, string>;

optional datasetOutput: string;

optional externalId: string;

optional finishReason: string;

input: LlmSpanAllowedInputType;

optional metadata: Record<string, string>;

optional metrics: LlmMetrics;

optional model: string;

optional name: string;

output: LlmSpanAllowedOutputType;

optional redactedInput: LlmSpanAllowedInputType;

optional redactedOutput: LlmSpanAllowedOutputType;

optional statusCode: number;

optional stepNumber: number;

optional tags: string[];

optional temperature: number;

optional tools: Record<string, any>[];