def channels(self, use_cached=False, **params_to_override):
default = self(**params_to_override)<EOL>current_generator = self.get_current_generator()<EOL>res = current_generator.channels(use_cached=True)<EOL>res['<STR_LIT:default>'] = default<EOL>return res<EOL>
Get channel data from the current generator.  use_cached is
not supported at the moment, though it must be forced to be
True in the current_generator in order to avoid generating the
same data twice (the first time by self() and the second with
current_generator.channels() ).