parameters: (self, sync_optimizer, is_chief, num_tokens)
docstring: Creates hook to handle SyncReplicaOptimizer initialization ops.
  
      Args:
        sync_optimizer: `SyncReplicasOptimizer` which this hook will initialize.
        is_chief: `Bool`, whether is this a chief replica or not.
        num_tokens: Number of tokens to add to the queue.
docstring_summary: Creates hook to handle SyncReplicaOptimizer initialization ops.
docstring_tokens: Creates hook to handle SyncReplicaOptimizer initialization ops .
function: def __init__(self, sync_optimizer, is_chief, num_tokens):
      """Creates hook to handle SyncReplicaOptimizer initialization ops.
  
      Args:
        sync_optimizer: `SyncReplicasOptimizer` which this hook will initialize.
        is_chief: `Bool`, whether is this a chief replica or not.
        num_tokens: Number of tokens to add to the queue.
      """
      self._sync_optimizer = sync_optimizer
      self._is_chief = is_chief
      self._num_tokens = num_tokens
function_tokens: def __init__ ( self , sync_optimizer , is_chief , num_tokens ) : self . _sync_optimizer = sync_optimizer self . _is_chief = is_chief self . _num_tokens = num_tokens