function setRoleAdmin(bytes32 role, bytes32 adminRole) external
function checkGovernor(address account) external view
function checkAdmin(address account) external view
function checkExecutor(address account) external view
function checkRegistrar(address account) external view
function isAdmin(address account) external view returns (bool)
function isRegistrar(address account) external view returns (bool)
function isGovernor(address account) external view returns (bool)
function isExecutor(address account) external view returns (bool)