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

# Either

> **Either**\<`T`, `U`>: `NonNullable`\<[`Left`](./Left)\<`T`> | [`Right`](./Right)\<`U`>>

## Type Parameters

| Type Parameter |
| -------------- |
| `T`            |
| `U`            |

## Defined in

[src/modules/types.ts:296](https://github.com/forte-service-company-ltd/forte-rules-engine-sdk/blob/5aad4d7c3c8cc91280e4449c17ac8ea31219fbed/src/modules/types.ts#L296)