text: import logging
  import types
  from typing import Dict, Optional
  
  from toucan_connectors import DataSlice
  
  logger = logging.getLogger(__name__)
  
  
  class QueryManager:
      def __init__(self):
          self.query: Dict[str, DataSlice] = {}
  
      @staticmethod
      def _execute(execute_method, connection, query: str, parameters: Optional[Dict] = None):
          logger.debug('call execute method')
          if isinstance(execute_method, types.MethodType) or isinstance(
              execute_method, types.FunctionType
          ):
              result = execute_method(connection, query, parameters)
              return result
          else:
              raise TypeError('execute_method is not callable')
  
      def execute(
          self, execute_method, connection, query: str, query_parameters: Optional[Dict] = None
      ):
          result = QueryManager._execute(execute_method, connection, query, query_parameters)
          return result
  
      @staticmethod
      def _describe(describe_method, connection, query: str):
          logger.debug('call describe method')
          if isinstance(describe_method, types.MethodType) or isinstance(
              describe_method, types.FunctionType
          ):
              result = describe_method(connection, query)
              return result
          else:
              raise TypeError('describe_method is not callable')
  
      def describe(self, describe_method, connection, query: str):
          result = QueryManager._describe(describe_method, connection, query)
          return result
  