Method defaultMutationOptions

packages/query-core/src/queryClient.ts:617–630

(
    options?: T,
  )

  }

  defaultMutationOptions<T extends MutationOptions<any, any, any, any>>(
    options?: T,
  ): T {
    if (options?._defaulted) {
      return options
    }
    return {
      ...this.#defaultOptions.mutations,
      ...(options?.mutationKey &&
        this.getMutationDefaults(options.mutationKey)),
      ...options,
      _defaulted: true,
    } as T
  }

  clear(): void {
    this.#queryCache.clear()