environment-variables

These are the environment variables used to build this docs:

>>> import os
>>> import pprint
>>> pprint.pprint(dict(os.environ))
{'BUILD_CODEWORDS': '6-ajkdsbnvkecm-fuudjnlwaqkdgh',
 'COLUMNS': '80',
 'DEBIAN_FRONTEND': 'noninteractive',
 'DOCUTILSCONFIG': '/home/docs/checkouts/readthedocs.org/user_builds/test-builds/checkouts/2119/docs/docutils.conf',
 'HOME': '/home/docs',
 'HOSTNAME': 'build-28921494-project-256207-test-builds',
 'LANG': 'C.UTF-8',
 'LINES': '24',
 'NO_COLOR': '1',
 'PATH': '/home/docs/checkouts/readthedocs.org/user_builds/test-builds/envs/2119/bin:/home/docs/.asdf/shims:/home/docs/.asdf/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin',
 'PUBLIC': '\'I\'"\'"\'m a public variable\'',
 'PUBLIC_VARIABLE': "'public value'",
 'PWD': '/home/docs/checkouts/readthedocs.org/user_builds/test-builds/checkouts/2119/docs',
 'READTHEDOCS': 'True',
 'READTHEDOCS_CANONICAL_URL': 'https://test-builds--2119.org.readthedocs.build/en/2119/',
 'READTHEDOCS_GIT_CLONE_URL': 'https://github.com/readthedocs/test-builds.git',
 'READTHEDOCS_GIT_COMMIT_HASH': 'b5cce2d76712f77b6bd37dee022d1e0bbd218149',
 'READTHEDOCS_GIT_IDENTIFIER': '2119',
 'READTHEDOCS_LANGUAGE': 'en',
 'READTHEDOCS_OUTPUT': '/home/docs/checkouts/readthedocs.org/user_builds/test-builds/checkouts/2119/_readthedocs/',
 'READTHEDOCS_PRODUCTION_DOMAIN': 'app.readthedocs.org',
 'READTHEDOCS_PROJECT': 'test-builds',
 'READTHEDOCS_REPOSITORY_PATH': '/home/docs/checkouts/readthedocs.org/user_builds/test-builds/checkouts/2119',
 'READTHEDOCS_VERSION': '2119',
 'READTHEDOCS_VERSION_NAME': '2119',
 'READTHEDOCS_VERSION_TYPE': 'external',
 'READTHEDOCS_VIRTUALENV_PATH': '/home/docs/checkouts/readthedocs.org/user_builds/test-builds/envs/2119'}

There is a variable called SECRET_VALUE_ESCAPED with this content {1}\|\1+-(8)$ that should be shown correctly.