Attribute elements specified by their URI.
export interface IAttributeElementsByRef
NOTE: attribute element URIs MAY NOT be transferable across workspaces. On some backends (such as bear) same element WILL have different URI in each workspace. In general we recommend using URIs only if your code retrieves them at runtime from backend using elements query or from the data view's headers. Hardcoding URIs is never a good idea, if you find yourself doing that, please consider specifying attribute elements by value