3.4 dev - Getinput('namegetvalue');

Possible to add this function on getinput();
<input type="text" aria-required="true" required="required" size="30" class="required" value="" id="jform_namegetvalue" name="jform[namegetvalue]" placeholder="Placeholder name without label">
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edit
Getinput('namegetvalue');
to
Getinput('namegetvalue', 'placeholder name without label');