[Home](./index.md) > [@workgrid/client](./client.md) > [Mutation](./client.mutation.md) ## Mutation type > This API is provided as a preview for developers and may change based on feedback that we receive. Do not use this API in a production environment. > Signature: ```typescript type Mutation = { TMutationKey: TMutationKey; TVariables: TVariables; TContext: TContext; TError: TError; TData: TData; }; ```