'Return the content type, but leaving off any parameters (like
charset, but also things like the type in ``application/atom+xml;
type=entry``)
If you set this property, you can include parameters, or if
you don\'t include any parameters in the value then existing
parameters will be preserved.'

def _content_type__get(self):

    return self._content_type_raw.split(';', 1)[0]
