text: # Copyright (c) Facebook, Inc. and its affiliates. 
  #   
  # This source code is licensed under the MIT license found in the 
  # LICENSE file in the root directory of this source tree.
  from bitsandbytes.optim.optimizer import Optimizer2State
  
  class Adam(Optimizer2State):
      def __init__(self, params, lr=1e-3, betas=(0.9, 0.999), eps=1e-8,
              weight_decay=0, amsgrad=False, optim_bits=32, args=None,
              min_8bit_size=4096, percentile_clipping=100, block_wise=True):
          super(Adam, self).__init__('adam', params, lr, betas, eps,
                  weight_decay, optim_bits, args, min_8bit_size, percentile_clipping, block_wise)
  
  class Adam8bit(Optimizer2State):
      def __init__(self, params, lr=1e-3, betas=(0.9, 0.999), eps=1e-8,
              weight_decay=0, amsgrad=False, args=None,
              min_8bit_size=4096, percentile_clipping=100, block_wise=True):
          super(Adam8bit, self).__init__('adam', params, lr, betas, eps,
                  weight_decay, 8, args, min_8bit_size, percentile_clipping, block_wise)
  
  class Adam32bit(Optimizer2State):
      def __init__(self, params, lr=1e-3, betas=(0.9, 0.999), eps=1e-8,
              weight_decay=0, amsgrad=False, args=None,
              min_8bit_size=4096, percentile_clipping=100, block_wise=True):
          super(Adam32bit, self).__init__('adam', params, lr, betas, eps,
                  weight_decay, 32, args, min_8bit_size, percentile_clipping, block_wise)
  
  
  