class_docstr: An abstract key-value store interface for data parallel training.
class_docstr_tok: ["An","abstract","key-value","store","interface","for","data","parallel","training","."]
docstr: Broadcast the `value` NDArray at rank 0 to all ranks,
  and store the result in `out`
  
  Parameters
  ----------
  key : str or int
      The key.
  
  value : NDArray
      The value corresponding to the key to broadcast
  
  out : NDArray, or list of NDArray
      Values corresponding to the key to store the result
  
  priority : int, optional
      The priority of the operation.
      Higher priority operations are likely to be executed before other actions.
docstr_tok: ["Broadcast","the","`","value","`","NDArray","at","rank","0","to","all","ranks",",","and","store","the","result","in","`","out","`","Parameters","--","--","--","--","--","key",":","str","or","int","The","key",".","value",":","NDArray","The","value","corresponding","to","the","key","to","broadcast","out",":","NDArray",",","or","list","of","NDArray","Values","corresponding","to","the","key","to","store","the","result","priority",":","int",",","optional","The","priority","of","the","operation",".","Higher","priority","operations","are","likely","to","be","executed","before","other","actions","."]
code: def broadcast(self, key, value, out, priority=0):
      """Broadcast the `value` NDArray at rank 0 to all ranks,
      and store the result in `out`
  
      Parameters
      ----------
      key : str or int
          The key.
  
      value : NDArray
          The value corresponding to the key to broadcast
  
      out : NDArray, or list of NDArray
          Values corresponding to the key to store the result
  
      priority : int, optional
          The priority of the operation.
          Higher priority operations are likely to be executed before other actions.
      """
      raise NotImplementedError()
  
imports: from array import array
  import ctypes
  import warnings
  from ..ndarray import NDArray
  from ..base import _LIB, c_str_array, c_handle_array, c_array, c_array_buf, c_str
  from ..base import check_call, string_types
  from ..base import KVStoreHandle
  from ..profiler import set_kvstore_handle
label_desc: Use image node_id 1 for calling the KVStoreBase obj's underlying member method code with example usage: obj.broadcast(key, value, out, priority) without return types