# Type Alias: Dict<TType>

> 

> **Dict**\<`TType`\>: `Record`\<`string`, `TType` \| `undefined`\>

Defined in: [packages/server/src/unstable-core-do-not-import/types.ts:24](https://github.com/trpc/trpc/blob/7c907acfd8b31929214792e3b8c2ad7a8ac72563/packages/server/src/unstable-core-do-not-import/types.ts#L24)

An object with string keys whose values may be `undefined`.

## Type Parameters

| Type Parameter |
| ------ |
| `TType` |