chore: remove serializeAndPush util

Will extract as a separate PR

addon/index.js

@@ -1,8 +1,7 @@
 import memberAction from './utils/member-action';
 import collectionAction from './utils/collection-action';
-import serializeAndPush from './utils/serialize-and-push';
 
 export const classOp = collectionAction;
 export const instanceOp = memberAction;
 
-export { collectionAction, memberAction, serializeAndPush };
+export { collectionAction, memberAction };

tests/dummy/app/models/fruit.js

@@ -1,7 +1,8 @@
 // BEGIN-SNIPPET fruit-model
 import DS from 'ember-data';
-import { memberAction, collectionAction, serializeAndPush } from 'ember-api-actions';
+import { memberAction, collectionAction } from 'ember-api-actions';
 import { assign } from '@ember/polyfills';
+import { isArray } from '@ember/array';
 
 const { attr, Model } = DS;
 
@@ -11,6 +12,19 @@ function mergeAttributes(attributes) {
   return payload;
 }
 
+// This is an example of how to extract JSON API responses and push
+// them into the store.
+// TODO extract and export as part of this addon
+function serializeAndPush(response) {
+  const recordClass = this.constructor;
+  const modelName = recordClass.modelName;
+  const { store } = this;
+  const serializer = store.serializerFor(modelName);
+  const normalized = isArray(response.data) ? serializer.normalizeArrayResponse(store, recordClass, response) :
+        serializer.normalizeSingleResponse(store, recordClass, response);
+  return this.store.push(normalized);
+}
+
 export default Model.extend({
   name: attr('string'),
   ripen: memberAction({ path: 'doRipen' }),