如何在vuex存储的getter方法中使用变异函数

export const state = () => ({ 
   results: []
})

export const mutations = { 
   initialFilters(state, res) {
      // write something .....
   }
}

initialFilters()

export const getters = {
   filter(state, mutations) {
     let results = mutations.initialFilters(state.results);
     return results;
   }
}