code: def gen_collection_name(prefix="test_collection", length=8):
      name = (
          f"{prefix}_"
          + datetime.datetime.now().strftime("%Y_%m_%d_%H_%M_%S_%f")
          + random_string(length=length)
      )
      return name
  
imports: import random
  import time
  import random
  import string
  from faker import Faker
  import numpy
  from sklearn import preprocessing
  import requests
  from loguru import logger
  import datetime
label_desc: Use image node_id 2 for calling a global function with example usage: gen_collection_name(prefix, length) and returns: name