code: func (api *API) UpdateUserAccessRule(accessRuleID string, accessRule AccessRule) (*AccessRuleResponse, error) {
  	return api.updateAccessRule("/user", accessRuleID, accessRule)
  }
docs: // UpdateUserAccessRule updates a single access rule for the logged-in user &
  // given access rule identifier.
  //
  // API reference: https://api.cloudflare.com/#user-level-firewall-access-rule-update-access-rule