// exports

this.promise = require("./promise.js");
this.states = require("./states/index.js");
this.metrics = require("./metrics.js");
this.state_machine = require("./state_machine.js");
// exports

this.promise = require("./promise.js");
this.states = require("./states/index.js");
this.metrics = require("./metrics.js");
this.state_machine = require("./state_machine.js");
this.dummy_api = require("./dummy_api.js");

Include dummy_api in vumigo.