Method setState

src/queryCore/core/mutation.ts:106–108

(state: MutationState<TData, TError, TVariables, TContext>)

  }

  setState(state: MutationState<TData, TError, TVariables, TContext>): void {
    this.dispatch({ type: 'setState', state })
  }

  addObserver(observer: MutationObserver<any, any, any, any>): void {
    if (this.observers.indexOf(observer) === -1) {