class_docstr: BaseParameterClient
  Parameter-server clients can do two things: retrieve the current parameters
  from the corresponding server, and send updates (`delta`) to the server.
class_docstr_tok: ["BaseParameterClient","Parameter-server","clients","can","do","two","things",":","retrieve","the","current","parameters","from","the","corresponding","server",",","and","send","updates","(","`","delta","`",")","to","the","server","."]
docstr: Update master parameters with deltas from training process
          
docstr_tok: ["Update","master","parameters","with","deltas","from","training","process"]
code: def update_parameters(self, delta: list):
      """Update master parameters with deltas from training process"""
      raise NotImplementedError
  
imports: import abc
  import numpy
  import socket
  import pickle
  import urllib.request
  from ..utils.sockets import determine_master, send, receive
label_desc: Use image node_id 2 for calling the BaseParameterClient obj's underlying member method code with example usage: obj.update_parameters(delta) without return types