text: # Licensed to the Apache Software Foundation (ASF) under one
  # or more contributor license agreements.  See the NOTICE file
  # distributed with this work for additional information
  # regarding copyright ownership.  The ASF licenses this file
  # to you under the Apache License, Version 2.0 (the
  # "License"); you may not use this file except in compliance
  # with the License.  You may obtain a copy of the License at
  #
  #   http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing,
  # software distributed under the License is distributed on an
  # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  # KIND, either express or implied.  See the License for the
  # specific language governing permissions and limitations
  # under the License.
  
  """
  Presto reader implementation.
  """
  import typing
  
  from pyhive import presto
  
  from forml.io.feed.extract.reader import sql
  
  
  class Reader(sql.Reader):
      """Presto reader."""
  
      @classmethod
      def connection(
          cls, host: str, port: int = 8080, username: typing.Optional[str] = None, password: typing.Optional[str] = None
      ) -> presto.Connection:
          return presto.connect(host=host, port=str(port), username=username, password=password)
  