def _additional(self, idents, kwargs):
if kwargs:<EOL><INDENT>for name, value in list(kwargs.items()):<EOL><INDENT>if not isinstance(value, list):<EOL><INDENT>raise ValueError('<STR_LIT>')<EOL><DEDENT>for i in range(len(value)):<EOL><INDENT>self[idents[i]][name] = value[i]<EOL><DEDENT><DEDENT><DEDENT>
Add additional data slots from **kwargs