anchor.diff:  -define(catalogPath, "/productCatalogManagement/v2/catalog/").
   -define(categoryPath, "/productCatalogManagement/v2/category/").
   -define(productSpecPath, "/productCatalogManagement/v2/productSpecification/").
  --define(offeringPath, "/catalogManagement/v2/productOffering/").
  +-define(offeringPath, "/productCatalogManagement/v2/productOffering/").
   -define(plaPath, "/catalogManagement/v2/pla/").
   -define(plaSpecPath, "/catalogManagement/v2/plaSpecification/").
   -define(inventoryPath, "/productInventoryManagement/v2/product/").
  
positive.code: 		Headers	:: [tuple()],
  		Body		:: iolist(),
  		Status	:: 400 | 404 | 412 | 500 .
  %% @doc Respond to `PATCH /catalogManagement/v2/productOffering/{id}'.
  %% 	Update a Product Offering using JSON patch method
  %% 	<a href="http://tools.ietf.org/html/rfc6902">RFC6902</a>.
  patch_offer(ProdId, Etag, ReqData) ->
  
negative.code: 	Headers	:: [tuple()],
  	Body		:: iolist(),
  	Status	:: 400 | 404 | 412 | 500 .
  %% @doc Respond to `GET /productCatalogManagement/v2/productOffering'.
  %% 	Retrieve all Product Offerings.
  %% @todo Filtering
  get_offers(Query, Headers) ->
  