threshold-ui/addons/api/mirage/serializers/session.js

import ApplicationSerializer from './application';
import { underscore } from '@ember/string';

export default ApplicationSerializer.extend({
  modelName: 'session',

  keyForRelationshipId(relationshipName) {
    return `${this._container.inflector.singularize(
      underscore(relationshipName)
    )}_id`;
  },

  _hashForModel(model) {
    const json = ApplicationSerializer.prototype._hashForModel.apply(
      this,
      arguments
    );
    json.user_id = model.userId;
    json.target_id = model.targetId;
    json.host_set_id = model.hostSetId;
    json.host_id = model.hostId;
    return json;
  },
});