

def 					A__	(       SCREAMING_SNAKE_CASE_		)   ->     int:

		if not isinstance(lowercase_							,       lowercase_		):
				lowerCamelCase   : List[str]								=F"Input value of [number={number}] must be an integer"
				raise TypeError(lowercase_		)

		if number < 1:
				lowerCamelCase   : List[Any]								=F"Input value of [number={number}] must be > 0"
				raise ValueError(lowercase_		)

		lowerCamelCase   : Tuple								=1

		for i in range(1							,       lowercase_		):
				current_number *= 4 * i - 2
				current_number //= i + 1

		return current_number


if __name__ == "__main__":
				import doctest

				doctest.testmod()








# coding=utf-8
# Copyright 2020 The HuggingFace Inc. team.
#
# 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.

# this script dumps information about the environment

import os
import sys

import transformers


snake_case_							=			'''3'''

print('''Python version:''', sys.version)
print('''transformers version:''', transformers.__version__)

try:
				import torch

				print('''Torch version:''', torch.__version__)
				print('''Cuda available:''', torch.cuda.is_available())
				print('''Cuda version:''', torch.version.cuda)
				print('''CuDNN version:''', torch.backends.cudnn.version())
				print('''Number of GPUs available:''', torch.cuda.device_count())
				print('''NCCL version:''', torch.cuda.nccl.version())
except ImportError:
				print('''Torch version:''', None)

try:
				import deepspeed

				print('''DeepSpeed version:''', deepspeed.__version__)
except ImportError:
				print('''DeepSpeed version:''', None)

try:
				import tensorflow as tf

				print('''TensorFlow version:''', tf.__version__)
				print('''TF GPUs available:''', bool(tf.config.list_physical_devices('''GPU''')))
				print('''Number of TF GPUs available:''', len(tf.config.list_physical_devices('''GPU''')))
except ImportError:
				print('''TensorFlow version:''', None)

