#!/usr/bin/env python3

# Copyright 2017 gRPC authors.
#
# Licensed 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.

from __future__ import print_function

import collections
import sys

import perfection

_MAX_HEADER_LIST_SIZE = 16 * 1024 * 1024

Setting = collections.namedtuple('Setting', 'id default min max on_error')
OnError = collections.namedtuple('OnError', 'behavior code')
clamp_invalid_value = OnError('CLAMP_INVALID_VALUE', 'PROTOCOL_ERROR')
disconnect_on_invalid_value = lambda e: OnError('DISCONNECT_ON_INVALID_VALUE', e
                                               )
DecoratedSetting = collections.namedtuple('DecoratedSetting',