>>> import albatross
>>> class Ctx(albatross.SimpleContext):
...     def input_add(self, *args):
...         print args
... 
>>> ctx = Ctx('.')
>>> albatross.Template(ctx, '<magic>', '''
... <al-input type="file" name="resume" whitespace>
... ''').to_html(ctx)
('file', 'resume', None, 0)
>>> ctx.flush_content()
<input type="file" name="resume" />
