docstr: Init the process group with basic information.
  
  Args:
      world_size: The total number of processes in the group.
      rank: The rank of the current process.
      group_name: The group name.
docstr_tok: ["Init","the","process","group","with","basic","information",".","Args",":","world_size",":","The","total","number","of","processes","in","the","group",".","rank",":","The","rank","of","the","current","process",".","group_name",":","The","group","name","."]
code: def __init__(self, world_size, rank, group_name):
      """Init the process group with basic information.
  
      Args:
          world_size: The total number of processes in the group.
          rank: The rank of the current process.
          group_name: The group name.
      """
      self._world_size = world_size
      self._rank = rank
      self._group_name = group_name
  
file_path: ray/python/ray/util/collective/collective_group/base_collective_group.py
imports: from abc import ABCMeta
  from abc import abstractmethod
  from ray.util.collective.types import AllReduceOptions, BarrierOptions, ReduceOptions, AllGatherOptions, BroadcastOptions, ReduceScatterOptions
label_desc: Use image node_id 1 to create a new BaseGroup object  with example: obj = BaseGroup(world_size, rank, group_name)