code: def check(self, query):
          
          if query.get_type() not in {Keyword.SELECT}:
              # Only select queries need to be checked here
              # All others are not affected by this rule. Bailing out.
              return Ok(True)
  
          earliest_date = query.get_earliest_date()
          if earliest_date >= self.min_start_date:
              return Ok(True)
  
          if query.limit_stmt:
              return Ok(True)
  
          return Err(("Querying for data before {} is prohibited. "
                      "Your beginning date is {}, which is before that.").format(self.min_start_date.strftime("%Y-%m-%d"),
                                                                                earliest_date))
docs: :param query: