<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def equities_sids_for_country_code(self, country_code):
 """Return all of the sids for a given country. Parameters country_code : str An ISO 3166 alpha-2 country code. Returns ------- tuple[int] The sids whose exchanges are in this country. """

        sids = self._compute_asset_lifetimes([country_code]).sid
        return tuple(sids.tolist())