code: def deregister_posix():
      fs_status = pyblazing.deregister_file_system(authority="mortgage")
      print(fs_status)
  
imports: import time
  from collections import OrderedDict
  import numpy
  import pandas
  import pyblazing
  from pyblazing import DriverType, FileSystemType, SchemaFrom, get_dtype_values
  from sklearn.model_selection import train_test_split
  import xgboost
  from Configuration import Settings
  from DemoTest.chronometer import Chronometer
  from Utils import Execution
label_desc: Use image node_id 4 for calling a global function with example usage: deregister_posix() without return types