picea-ui/docs/10-ui-file.md

ui:file (string $name, mixed $value = null, array $attributes = [], array $options = [])

Built on top of ui:input.

The following attributes are assigned by this extension :

• 'class' => "ui-file"
• 'type' => "file"

and will typically be rendered such as :

<input class="ui-file" type="file" value="" name="">