 
 
 I need the  js  file in  plugins  or  assets  to call the mutation method  add . How can I call it correctly? 
  
 
 I need the  js  file in  plugins  or  assets  to call the mutation method  add . How can I call it correctly? 
export default ({ store }) => {
    .... your code ....
} this is official, not import 
  
 
this is vuex's stuff, document address
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