docs: function (name) { var self = this
  
          //console.log ('callChainMethod', this.constructor.$meta.name, name)
  
          const methods = _.filter2 (this.constructor.$traits || [], function (Trait) {
  
                                                                          var method = Trait.prototype[name]
  
                                                                          // if (method) {
                                                                          //     return (...args) => {
                                                                          //         console.log ('Calling', Trait.$meta.name, name)
                                                                          //         return method.call (self, ...args)
                                                                          //     }
                                                                          // }
  
                                                                          return (method && method.bind (self)) || false })
  
          return __.seq (methods) }