class_docstr: The fake KVStore client.
  
  This is to mimic the distributed KVStore client. It's used for DistGraph
  in standalone mode.
class_docstr_tok: ["The","fake","KVStore","client",".","This","is","to","mimic","the","distributed","KVStore","client",".","It","'s","used","for","DistGraph","in","standalone","mode","."]
docstr: Count nonzero value by pull request from KVServers.
  
  Parameters
  ----------
  name : str
      data name
  
  Returns
  -------
  int
      the number of nonzero in this data.
docstr_tok: ["Count","nonzero","value","by","pull","request","from","KVServers",".","Parameters","--","--","--","--","--","name",":","str","data","name","Returns","--","--","--","-","int","the","number","of","nonzero","in","this","data","."]
code: def count_nonzero(self, name):
      """Count nonzero value by pull request from KVServers.
  
      Parameters
      ----------
      name : str
          data name
  
      Returns
      -------
      int
          the number of nonzero in this data.
      """
      return F.count_nonzero(self._data[name])
  
imports: from ..None import backend
label_desc: Use image node_id 16 for calling the KVClient obj's underlying member method code with example usage: obj.count_nonzero(name) and returns: F