docs: boolean isSchemaAuthorisation(Grantee grantee) {
  
          Iterator schemas = allSchemaNameIterator();
  
          while (schemas.hasNext()) {
              String schemaName = (String) schemas.next();
  
              if (grantee.equals(toSchemaOwner(schemaName))) {
                  return true;
              }
          }
  
          return false;
      }