code: function() {
      if (this._allParameters) {
        return this._allParameters
      }
  
      // First gather all Endpoint parameters, post-order walk
      var allEndpointParameters = function(endpoint, all) {
        if (!_.isNil(endpoint)) {
          all = _.assignIn(
            _.clone(allEndpointParameters(endpoint.parent, endpoint.parameters)),
            all || {})
        }
        return all
      }
  
      // Cache result
      this._allParameters =
        allEndpointParameters(this.endpoint, this.parameters || {})
  
      return this._allParameters
    }
docs: ***************************************************************************
  @method getAllParameters
  @description Gets all parameters defined for this {@link carbond.Operation}
  which includes all parameters inherited from this.endpoint
  @returns {Object.<string, carbond.OperationParameter>}