text: import random
  import string
  
  from nexussdk.client import NexusClient
  
  _ENV_ = "https://dev.nexus.ocp.bbp.epfl.ch/v1"
  _TOKEN_ = None
  
  
  def random_string(length=10):
      """Generate a random string of fixed length """
      letters = string.ascii_lowercase
      return ''.join(random.choice(letters) for i in range(length))
  
  
  def new_client():
      return NexusClient(_ENV_, _TOKEN_)
  