# fallbackRandU256

> **fallbackRandU256**(): `bigint`

Defined in: [packages/synapse-core/src/utils/rand.ts:3](https://github.com/FilOzone/synapse-sdk/blob/6561abfff7933d656f1cfd64fa523063e8587ffa/packages/synapse-core/src/utils/rand.ts#L3)

## Returns

`bigint`