EntitySet.
set_secondary_time_index
Set the secondary time index for a dataframe in the EntitySet using its dataframe name.
dataframe_name (str) – name of the dataframe for which to set the secondary time index.
secondary_time_index (dict[str-> list[str]]) – Name of column containing time data to be used as a secondary time index mapped to a list of the columns in the dataframe associated with that secondary time index.