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

# Interface: MutationOptions

> Options for mutation.

[browser](/api/modules/browser).MutationOptions

Options for [mutation](/api/classes/browser.BaseBijectionClient#mutation).

## Properties

### optimisticUpdate

• `Optional` **optimisticUpdate**: [`OptimisticUpdate`](/api/modules/browser#optimisticupdate)\<`any`>

An optimistic update to apply along with this mutation.

An optimistic update locally updates queries while a mutation is pending.
Once the mutation completes, the update will be rolled back.