@Override
  public void revokePrivilegeFromRole(String roleName, PrivilegeUnion union) throws AuthException {
    roleManager.revokePrivilegeFromEntity(roleName, union);
  }
Checks if a user has admin privileges
iotdb-core/node-commons/src/main/java/org/apache/iotdb/commons/auth/authorizer/BasicAuthorizer.java