> ## Documentation Index
> Fetch the complete documentation index at: https://docs.forterulesengine.io/llms.txt
> Use this file to discover all available pages before exploring further.

# TrackerDefinition

> v0.20.5

> **TrackerDefinition** = `object`

Defined in: [src/modules/types.ts:419](https://github.com/Forte-Service-Company-Ltd/forte-rules-engine-sdk/blob/40cc8388cecd8ee445b00b9df2b681cff8552ece/src/modules/types.ts#L419)

Definition of a tracker

## Properties

### arrayValueType

> **arrayValueType**: `number`

Defined in: [src/modules/types.ts:427](https://github.com/Forte-Service-Company-Ltd/forte-rules-engine-sdk/blob/40cc8388cecd8ee445b00b9df2b681cff8552ece/src/modules/types.ts#L427)

Array Value Type

***

### initialValue

> **initialValue**: `any`

Defined in: [src/modules/types.ts:425](https://github.com/Forte-Service-Company-Ltd/forte-rules-engine-sdk/blob/40cc8388cecd8ee445b00b9df2b681cff8552ece/src/modules/types.ts#L425)

Initial value of the tracker

***

### name

> **name**: `string`

Defined in: [src/modules/types.ts:421](https://github.com/Forte-Service-Company-Ltd/forte-rules-engine-sdk/blob/40cc8388cecd8ee445b00b9df2b681cff8552ece/src/modules/types.ts#L421)

Name of the tracker

***

### type

> **type**: `number`

Defined in: [src/modules/types.ts:423](https://github.com/Forte-Service-Company-Ltd/forte-rules-engine-sdk/blob/40cc8388cecd8ee445b00b9df2b681cff8552ece/src/modules/types.ts#L423)

Type of the tracker