code: def _unpack_arrayfire(self):
      if not os.path.exists(self.af_unpack_path):
          os.mkdir(self.af_unpack_path)
      self.output.info(
          f"Unpacking ArrayFire {ARRAYFIRE_VERSION} binary installer..."
      )
      cmd = f"bash {self.af_installer_local_path} --prefix={self.af_unpack_path} --skip-license"
      self.run(cmd)
      self.output.success(
          f"ArrayFire {ARRAYFIRE_VERSION} successfully unpacked."
      )
  
file_path: arrayfire/conanfile.py
imports: from conans import ConanFile, CMake, tools
  import os
label_desc: Use image node_id 4 for calling the ArrayFireConan obj's underlying member method code with example usage: obj._unpack_arrayfire() without return types