code: def unzip(cls, root, file_name, remove_after_unpacking=True):
      zip_file_path = os.path.join(root, file_name)
      assert zip_file_path.endswith(".zip")
      with zipfile.ZipFile(zip_file_path) as zip_f:
          zip_f.extractall(root)
      # TODO: to add integrity check
      if remove_after_unpacking:
          os.remove(zip_file_path)
  
imports: import os
  import zipfile
label_desc: Use image node_id 1 for calling the VizSeqZipFile obj's underlying member method code with example usage: obj.unzip(cls, root, file_name, remove_after_unpacking) without return types