def render():
ex = get_exporter(key)
with io.StringIO() as buf:
self._context.globals['options'][
'controller'].apply_export_filter(self._target,
ex,
filename=buf)
res = TypedUnicode(buf.getvalue())
res.contenttype = ex.mimetype
return res
def keys(self):
"""Returns the ids of valid exporters
"""
return list(get_exporter().keys())
def __contains__(self, key):
v = get_exporter(key)
return v is not None
