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{{[[Template:{{{1}}}|{{{1}}}]]}}

Template Documentation follows
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Description

A template link with a variable number of parameters (0-20).

Syntax
{{T|<parameter1>|<parameter2>|<parameter3>|<parameter4>|<...>|<parameter20>}}
Source
Improved version not needing T/piece sub-template developed on Templates wiki see Template:T. Copied here via CC-By-SA 3.0 license.
Example
{{T|<param1>|<param2>}}
The above documentation is transcluded from Template:T/doc. (edit | history)
Editors can experiment in this template's sandbox (create | mirror) and testcases (create) pages.
Add categories and interwikis to the /doc subpage. Subpages of this template.