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update documentation to note returning empty string if wikidata has no value |
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== Usage ==
* <code><nowiki>{{#invoke:
* <code><nowiki>{{#invoke:
* <code><nowiki>{{#invoke:
Inside an infobox definition, it may be called like this:
* <code><nowiki>| data55 = {{#invoke:
which causes the infobox to:
# not display spouse if the infobox parameter <code>|spouse</code> is
# display the linked value(s) from Wikidata if the infobox parameter <code>|spouse</code> is
# display the local infobox parameter <code>|spouse</code> if it is supplied (e.g. <code>"|spouse = Hillary Clinton"</code>)
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