text: # -*- coding: utf-8 -*-
  # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  #
  # Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  #
  # Unless required by applicable law or agreed to in writing,
  # software distributed under the License is distributed on an
  # "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  
  import logging
  from ctypes import *
  from enum import Enum, IntEnum
  
  
  class LiteBackend(IntEnum):
      LITE_DEFAULT = 0
  
  
  class LiteDeviceType(IntEnum):
      LITE_CPU = 0
      LITE_CUDA = 1
      LITE_ATLAS = 3
      LITE_NPU = 4
      LITE_DEVICE_DEFAULT = 5
  
  
  class LiteDataType(IntEnum):
      LITE_FLOAT = 0
      LITE_HALF = 1
      LITE_INT = 2
      LITE_INT16 = 3
      LITE_INT8 = 4
      LITE_UINT8 = 5
      LITE_UINT16 = 6
  
  
  class LiteTensorPhase(IntEnum):
      LITE_IO = 0
      LITE_INPUT = 1
      LITE_OUTPUT = 2
  
  
  class LiteIOType(IntEnum):
      """
      the input and output type, include SHAPE and VALUE
      sometimes user only need the shape of the output tensor
      """
  
      LITE_IO_VALUE = 0
      LITE_IO_SHAPE = 1
  
  
  class LiteAlgoSelectStrategy(IntEnum):
      """
      operation algorithm seletion strategy type, some operations have
      multi algorithms, different algorithm has different attribute, according to
      the strategy, the best algorithm will be selected.
  
      Note: These strategies can be combined
  
      LITE_ALGO_HEURISTIC | LITE_ALGO_PROFILE means: if profile cache not valid,
      use heuristic instead
  
      LITE_ALGO_HEURISTIC | LITE_ALGO_REPRODUCIBLE means: heuristic choice the
      reproducible algo
  
      LITE_ALGO_PROFILE | LITE_ALGO_REPRODUCIBLE means: profile the best
      algorithm from the reproducible algorithms set
  
      LITE_ALGO_PROFILE | LITE_ALGO_OPTIMIZED means: profile the best
      algorithm form the optimzed algorithms, thus profile will process fast
  
      LITE_ALGO_PROFILE | LITE_ALGO_OPTIMIZED | LITE_ALGO_REPRODUCIBLE means:
      profile the best algorithm form the optimzed and reproducible algorithms
      """
  
      LITE_ALGO_HEURISTIC = 1
      LITE_ALGO_PROFILE = 2
      LITE_ALGO_REPRODUCIBLE = 4
      LITE_ALGO_OPTIMIZED = 8
  
  
  class LiteLogLevel(IntEnum):
      """
      DEBUG: The most verbose level, printing debugging info
      INFO: The default level
      WARN: Printing warnings
      ERROR: The least verbose level, printing errors only
      """
  
      DEBUG = 0
      INFO = 1
      WARN = 2
      ERROR = 3
  