How to use get_image_environment_variable method in localstack

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...85 "tag": (result.get("RepoTags") or ["latest"])[0].split(":")[-1],86 "created": result["Created"].split(".")[0],87 }88 return result89def get_image_environment_variable(env_name: str) -> Optional[str]:90 image_name = get_docker_image_to_start()91 image_info = DOCKER_CLIENT.inspect_image(image_name)92 image_envs = image_info["Config"]["Env"]93 try:94 found_env = next(env for env in image_envs if env.startswith(env_name))95 except StopIteration:96 return None97 return found_env.split("=")[1]98def get_server_version_from_running_container() -> str:99 try:100 # try to extract from existing running container101 container_name = get_main_container_name()102 version, _ = DOCKER_CLIENT.exec_in_container(103 container_name, interactive=True, command=["bin/​localstack", "--version"]104 )105 version = to_str(version).strip().splitlines()[-1]106 return version107 except ContainerException:108 try:109 # try to extract by starting a new container110 img_name = get_docker_image_to_start()111 version, _ = DOCKER_CLIENT.run_container(112 img_name,113 remove=True,114 interactive=True,115 entrypoint="",116 command=["bin/​localstack", "--version"],117 )118 version = to_str(version).strip().splitlines()[-1]119 return version120 except ContainerException:121 # fall back to default constant122 return constants.VERSION123def get_server_version() -> str:124 image_hash = get_docker_image_details()["id"]125 version_cache = cache_dir() /​ "image_metadata" /​ image_hash /​ "localstack_version"126 if version_cache.exists():127 cached_version = version_cache.read_text()128 return cached_version.strip()129 env_version = get_image_environment_variable("LOCALSTACK_BUILD_VERSION")130 if env_version is not None:131 version_cache.parent.mkdir(exist_ok=True, parents=True)132 version_cache.write_text(env_version)133 return env_version134 container_version = get_server_version_from_running_container()135 version_cache.parent.mkdir(exist_ok=True, parents=True)136 version_cache.write_text(container_version)137 return container_version138def setup_logging():139 """Determine and set log level. The singleton factory makes sure the logging is only set up once."""140 from localstack.logging.setup import setup_logging_from_config141 setup_logging_from_config()142# --------------143# INFRA STARTUP...

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