code: func MustExecContext(ctx context.Context, e ExecerContext, query string, args ...interface{}) sql.Result {
  	res, err := e.ExecContext(ctx, query, args...)
  	if err != nil {
  		panic(err)
  	}
  	return res
  }
docs: // MustExecContext execs the query using e and panics if there was an error.
  // Any placeholder parameters are replaced with supplied args.