'A YAML representation of the :class:`Dataset` object. If headers have been
set, a YAML list of objects will be returned. If no headers have
been set, a YAML list of lists (rows) will be returned instead.
A dataset object can also be imported by setting the :class:`Dataset.yaml` attribute: ::
data = tablib.Dataset()
data.yaml = \'- {age: 90, first_name: John, last_name: Adams}\'
Import assumes (for now) that headers exist.'

@property
def yaml():

    pass
