new LlmSpan(data: LlmSpanOptions): LlmSpan;

createdAt: Date;

optional datasetInput: string;

optional datasetMetadata: Record<string, string> = {};

optional datasetOutput: string;

optional events: Event[];

optional externalId: string;

optional finishReason: string;

id: string;

input: object[];

content:
  | string
  | (
  | {
  text: string;
  type: "text";
}
  | {
  file_id: string;
  type: "file";
})[];

role:
  | "function"
  | "agent"
  | "tool"
  | "assistant"
  | "developer"
  | "system"
  | "user";

optional tool_call_id: null | string;

optional tool_calls: null | object[];

metrics: LlmMetrics;

optional model: string;

name: string = "";

output: object;

content:
  | string
  | (
  | {
  text: string;
  type: "text";
}
  | {
  file_id: string;
  type: "file";
})[];

role:
  | "function"
  | "agent"
  | "tool"
  | "assistant"
  | "developer"
  | "system"
  | "user";

optional tool_call_id: null | string;

optional tool_calls: null | object[];

optional redactedInput: object[];

content:
  | string
  | (
  | {
  text: string;
  type: "text";
}
  | {
  file_id: string;
  type: "file";
})[];

role:
  | "function"
  | "agent"
  | "tool"
  | "assistant"
  | "developer"
  | "system"
  | "user";

optional tool_call_id: null | string;

optional tool_calls: null | object[];

optional redactedOutput: object;

content:
  | string
  | (
  | {
  text: string;
  type: "text";
}
  | {
  file_id: string;
  type: "file";
})[];

role:
  | "function"
  | "agent"
  | "tool"
  | "assistant"
  | "developer"
  | "system"
  | "user";

optional tool_call_id: null | string;

optional tool_calls: null | object[];

optional statusCode: number;

optional stepNumber: number;

optional tags: string[];

optional temperature: number;

optional tools: JsonObject[];

type:
  | "agent"
  | "llm"
  | "retriever"
  | "tool"
  | "workflow"
  | "control"
  | "trace"
  | "session" = StepType.llm;

userMetadata: Record<string, string> = {};

toJSON(): SerializedLlmSpan;

validateInputOutputSerializable<T>(val: T): T;