public RoleInterface::setIsAdmin($is_admin)

public RoleInterface::isAdmin() Indicates

public RoleInterface::revokePermission($permission)

public RoleInterface::hasPermission($permission)

Role ID for anonymous users; should match what's in the "role" table. File core/modules/user/src/RoleInterface

public RoleInterface::getPermissions() Returns

Role ID for authenticated users; should match what's in the "role" table. File core/modules/user/src/RoleInterface

public RoleInterface::grantPermission($permission)

public RoleInterface::getWeight() Returns

public RoleInterface::setWeight($weight) Sets