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Get content parts for multi-part content display Returns an array of {id, key, value, language, expanded} objects for each content part
Check if content has multiple parts (for non-string content)
A callback method that is invoked immediately after the default change detector has checked data-bound properties if at least one has changed, and before the view and content children are checked.
A callback method that is invoked immediately after the default change detector has checked the directive's data-bound properties for the first time, and before any of the view or content children have been checked. It is invoked only once when the directive is instantiated.
Open the full-screen overlay with the given content
Toggle the expanded state of a content part
Close the full-screen overlay