en

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| text = 
'''This {{lcfirst:{{NAMESPACE}}}} is used {{#if:{{{1|}}}|{{{1}}}|in system messages}}.''' <br/> Changes to it can cause immediate changes to the MediaWiki user interface. To avoid large-scale disruption, any changes should first be tested in this {{lcfirst:{{NAMESPACE}}}}'s [[{{#switch: {{SUBPAGENAME}}
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   }}/sandbox|/sandbox]] or [[{{#switch: {{SUBPAGENAME}}
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   }}/testcases|/testcases]] subpage, or in your own [[Special:MyLanguage/Help:Subpages|user space]]. The tested changes can then be added in one single edit to this {{lcfirst:{{NAMESPACE}}}}. Please discuss any changes {{#if:{{{2|}}}|at [[{{{2}}}]]|on the [[{{#switch: {{SUBPAGENAME}}
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   }}|talk page]]}} before implementing them.
}}
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  {{#invoke:Template translation|renderTranslatedTemplate|template=Template:Used in system|noshift=1|uselang={{int:lang}}}}
}}<noinclude>
{{documentation}}
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