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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def FVDEVolumeOpen(fvde_volume, path_spec, file_object, key_chain):
 """Opens the FVDE volume using the path specification. Args: fvde_volume (pyfvde.volume):
 FVDE volume. path_spec (PathSpec):
 path specification. file_object (FileIO):
 file-like object. key_chain (KeyChain):
 key chain. """

  encrypted_root_plist = key_chain.GetCredential(
      path_spec, 'encrypted_root_plist')
  if encrypted_root_plist:
    fvde_volume.read_encrypted_root_plist(encrypted_root_plist)

  password = key_chain.GetCredential(path_spec, 'password')
  if password:
    fvde_volume.set_password(password)

  recovery_password = key_chain.GetCredential(path_spec, 'recovery_password')
  if recovery_password:
    fvde_volume.set_recovery_password(recovery_password)

  fvde_volume.open_file_object(file_object)