text: import json
  import numpy as np
  
  # {"jsonrpc":"2.0","result":[7.64010469297725,91.967591337659],"id":"1"}
  def createResult(a,b,c):
  	data = {}
  	data['jsonrpc'] = a
  	data['result'] = b.tolist() #"Marshal to NumPy Array" = TRUE
  	#data['result'] = b #"Marshal to NumPy Array" = FALSE
  	data['id'] = c		
  	result = json.dumps(data)
  	return result;
  	
  # some words about this function
  def parseResult(a,b):
  	result = json.loads(a) #create a dictionary to hold the JSON string "a"
  	return result[b];
  	#return b;
  
  # {"jsonrpc": "2.0", "method": "subtract", "params": [23, 42], "id": 2}
  def createRequest(a,b,c,d):
  	data = {}
  	data['jsonrpc'] = a
  	data['method'] = b
  	data['params'] = c
  	data['id'] = d
  	request = json.dumps(data)
  	return request;
  
  #
  def parseRequest(a,b):
  	request = json.loads(a) #create a dictionary to hold the JSON string "a"
  	return request[b];