# headline - the line of wiki text, for example, a link to remote content or just a header
# headline - the line of wiki text, for example, a link to remote content or just a header
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# content - the content wiki text. It may be another template for transclusion of a page or embedding of an external page, or just plain content that you user to be able to expand or collapse.
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# content - the content wiki text. It may be another template for transclusion of a page or embedding of an external page, or just plain content that you want the reader to be able to expand or collapse.