```\nmapping(uint256 => bool) public liquidated;\n\n/// @notice `\_poolIDs` maps agentID to the pools they have actively borrowed from\nmapping(uint256 => uint256[]) private \_poolIDs;\n\n/// @notice `\_credentialUseBlock` maps signature bytes to when a credential was used\nmapping(bytes32 => uint256) private \_credentialUseBlock;\n\n/// @notice `\_agentBeneficiaries` maps an Agent ID to its Beneficiary struct\nmapping(uint256 => AgentBeneficiary) private \_agentBeneficiaries;\n```\n