ModelError

Defined in: src/errors.ts:18

Base exception class for all model-related errors.

This class serves as the common base type for errors that originate from model provider interactions. By catching ModelError, consumers can handle all model-related errors uniformly while still having access to specific error types through instanceof checks.

Extends

• Error

Extended by

• ContextWindowOverflowError
• MaxTokensError
• ModelThrottledError

Constructors

Constructor

new ModelError(message, options?): ModelError;

Defined in: src/errors.ts:25

Creates a new ModelError.

Parameters

Parameter	Type	Description
message	string	Error message describing the model error
options?	{ cause?: unknown; }	Optional error options including the cause
options.cause?	unknown	-

Returns

ModelError

Overrides

Error.constructor

Properties

stackTraceLimit

static stackTraceLimit: number;

Defined in: ../../node_modules/@types/node/globals.d.ts:68

The Error.stackTraceLimit property specifies the number of stack frames collected by a stack trace (whether generated by new Error().stack or Error.captureStackTrace(obj)).

The default value is 10 but may be set to any valid JavaScript number. Changes will affect any stack trace captured after the value has been changed.

If set to a non-number value, or set to a negative number, stack traces will not capture any frames.

Inherited from

Error.stackTraceLimit

---

cause?

optional cause: unknown;

Defined in: ../../node_modules/typescript/lib/lib.es2022.error.d.ts:26

Inherited from

Error.cause

---

name

name: string;

Defined in: ../../node_modules/typescript/lib/lib.es5.d.ts:1076

Inherited from

Error.name

---

message

message: string;

Defined in: ../../node_modules/typescript/lib/lib.es5.d.ts:1077

Inherited from

Error.message

---

stack?

optional stack: string;

Defined in: ../../node_modules/typescript/lib/lib.es5.d.ts:1078

Inherited from

Error.stack

Methods

captureStackTrace()

static captureStackTrace(targetObject, constructorOpt?): void;

Defined in: ../../node_modules/@types/node/globals.d.ts:52

Creates a .stack property on targetObject, which when accessed returns a string representing the location in the code at which Error.captureStackTrace() was called.

const myObject = {};
Error.captureStackTrace(myObject);
myObject.stack;  // Similar to `new Error().stack`

The first line of the trace will be prefixed with ${myObject.name}: ${myObject.message}.

The optional constructorOpt argument accepts a function. If given, all frames above constructorOpt, including constructorOpt, will be omitted from the generated stack trace.

The constructorOpt argument is useful for hiding implementation details of error generation from the user. For instance:

function a() {
  b();
}

function b() {
  c();
}

function c() {
  // Create an error without stack trace to avoid calculating the stack trace twice.
  const { stackTraceLimit } = Error;
  Error.stackTraceLimit = 0;
  const error = new Error();
  Error.stackTraceLimit = stackTraceLimit;

  // Capture the stack trace above function b
  Error.captureStackTrace(error, b); // Neither function c, nor b is included in the stack trace
  throw error;
}

a();

Parameters

Parameter	Type
targetObject	object
constructorOpt?	Function

Returns

void

Inherited from

Error.captureStackTrace

---

prepareStackTrace()

static prepareStackTrace(err, stackTraces): any;

Defined in: ../../node_modules/@types/node/globals.d.ts:56

Parameters

Parameter	Type
err	Error
stackTraces	CallSite[]

Returns

any

See

https://v8.dev/docs/stack-trace-api#customizing-stack-traces

Inherited from

Error.prepareStackTrace