Declarative syntax - The *two* templates below should have IDENTICAL STRUCTURE to this one. There are four cases to test: 1. Main document parsing (this chunk) 2. Template parsing (the template below with id=declarative) 3. Template/fragment cloning (a clone of the template with id=declarative) 4. Declarative Shadow DOM parsing (template with id=declarative_shadow_dom and shadowrootmode attribute)

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