@Substitution(name='<STR_LIT>')<EOL><INDENT>@Appender(_common_see_also)<EOL>def rolling(self, *args, **kwargs):<DEDENT>
from pandas.core.window import RollingGroupby<EOL>return RollingGroupby(self, *args, **kwargs)<EOL>
Return a rolling grouper, providing rolling functionality per group.