Help with my nodejs scripting service

hi
if anyone could help me with my nodejs Script service
on Dreamfactory 2.2

imagine following script

var lodash = require("/usr/local/lib/node_modules/lodash");
var api = new mangopay({
clientId: 'myID',

clientPassword: 'mypass',
   baseUrl: 'https://api.sandbox.mangopay.com'

});

api.Users.create({

 Tag: "tag",

FirstName: "fname",
LastName: "lname",
Birthday: 1463496101,
Nationality: "FR",
CountryOfResidence: 'FR',

Email: 'myemail@myemail.com',
    PersonType: "NATURAL",

}, function(myOtherUser) {
return myOtherUser // This doesnt display anything

}

return "test" // return test -> so ok here

it seems that the return inside the myOtherUser function doesn't display/return value
even with a return "thisisatest"

the only return that works is outside any function.
so how could i pass myOtherUser value outside the function ?

same script in a .js file run form a bash display return myOtherUser ..

thanks