code: function Call(path) {
    if (typeof path !== 'string' || arguments.length > 1) { throw new Error('Property decorators can be used for single property access') }
    return createDecorator((options, key) => {
      if (!options.methods) options.methods = {}
      options.methods[key] = call(path)
    })
  }
docs: Decortaor for `call` component helper.
  @param   {string}          path - Path in store
  @returns {VueDecorator}  - Vue decortaor to be used in cue class component.