<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def get_adjustments_for_sid(self, group, dates, requested_qtr_data, last_per_qtr, sid_to_idx, columns, col_to_all_adjustments, split_adjusted_asof_idx=None, split_adjusted_cols_for_group=None):
 """ Collects both overwrites and adjustments for a particular sid. Parameters split_adjusted_asof_idx : int The integer index of the date on which the data was split-adjusted. split_adjusted_cols_for_group : list of str The names of requested columns that should also be split-adjusted. """

        all_adjustments_for_sid = {}
        sid = int(group.name)
        self.collect_overwrites_for_sid(group,
                                        dates,
                                        requested_qtr_data,
                                        last_per_qtr,
                                        sid_to_idx[sid],
                                        columns,
                                        all_adjustments_for_sid,
                                        sid)
        (pre_adjustments,
         post_adjustments) = self.retrieve_split_adjustment_data_for_sid(
            dates, sid, split_adjusted_asof_idx
        )
        sid_estimates = self.estimates[
            self.estimates[SID_FIELD_NAME] == sid
            ]
        # We might not have any overwrites but still have
        # adjustments, and we will need to manually add columns if
        # that is the case.
        for col_name in split_adjusted_cols_for_group:
            if col_name not in all_adjustments_for_sid:
                all_adjustments_for_sid[col_name] = {}

        self.collect_split_adjustments(
            all_adjustments_for_sid,
            requested_qtr_data,
            dates,
            sid,
            sid_to_idx[sid],
            sid_estimates,
            split_adjusted_asof_idx,
            pre_adjustments,
            post_adjustments,
            split_adjusted_cols_for_group
        )
        self.merge_into_adjustments_for_all_sids(
            all_adjustments_for_sid, col_to_all_adjustments
        )