Undefined params fields when creating a model for a route EmberJs using Webstorm

I am learning Ember js with the statrter kit and I want to create a dynamic model for a route. Wen I try to access params fields such as friends_id, it is undefined. Is it a problem due to libraries in webstorm or have I done something wrong with the routes. Thanks in advance. I put my code below.app.js, defining models

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