def _check_values(self, values):
assert isinstance(values, Iterable) and notisinstance(values, (str, dict, bytes, bytearray)),'<STR_LIT>'.format(type(values))<EOL>assert len(values) == len(self.datetimes),'<STR_LIT>'.format(<EOL>len(values), len(self.datetimes))<EOL>assert len(values) > <NUM_LIT:0>, '<STR_LIT>'<EOL>
Check values whenever they come through the values setter.