code: func (s *AuthzRoleService) Authorize(ctx context.Context, spaceID string) (bool, error) {
  	jwttoken := goajwt.ContextJWT(ctx)
  	if jwttoken == nil {
  		return false, errors.NewUnauthorizedError("missing token")
  	}
  	return s.checkRole(ctx, *jwttoken, spaceID)
  }
docs: // Authorize returns true if the current user is among the space collaborators