ember-app-scheduler/.node_modules.ember-try/core-js/modules/_an-instance.js

Ember addon to schedule work at different phases of app life cycle.

module.exports = function(it, Constructor, name, forbiddenField){
  if(!(it instanceof Constructor) || (forbiddenField !== undefined && forbiddenField in it)){
    throw TypeError(name + ': incorrect invocation!');
  } return it;
};