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

# U64String

> **U64String** = `string` & `object`

Defined in: [metacomputer/gen-framework/client-and-test-utils/client-sdk-ts/packages/client-sdk/src/rpc-types/types.ts:302](https://github.com/gen-bc/gen/blob/main/metacomputer/gen-framework/client-and-test-utils/client-sdk-ts/packages/client-sdk/src/rpc-types/types.ts#L302)

A u64 value serialized as a decimal string to preserve precision.

## Type Declaration

### \_\_brand

> `readonly` **\_\_brand**: `"U64String"`