code: function setSilent(path, value) {
      // Cannot set things that can't be serialized
      let valueType = typeof value;
  
      if (valueType === 'function') {
        throw new Error('[toystore] Cannot set "' + path + '" with value type "' + valueType + '". All store values must be serializable.');
      }
  
      // Setting 'undefined' on an object key here will remove it from the store,
      // so we switch it to null. Removing keys should only be done with 'unset'.
      if (value === undefined) {
        value = null;
      }
  
      _set(state, path, value);
    }
docs: Set a store value at path/key to given value WITHOUT notifying watchers
  
  @param {String} path
  @param {mixed} value
  @return null