class_docstr: Container for building and publishing ray docker images
code: def get_python_version_tag(self) -> str:
      return f"-py{self.python_version.replace('.', '')}"
  
file_path: ray/ci/ray_ci/docker_container.py
imports: import os
  from typing import List
  from ci.ray_ci.linux_container import LinuxContainer
  from ci.ray_ci.builder_container import DEFAULT_ARCHITECTURE, DEFAULT_PYTHON_VERSION
label_desc: Use image node_id 4 for calling the DockerContainer obj's underlying member method code with example usage: obj.get_python_version_tag() and returns: str, self