Example: https://github.com/open-telemetry/opentelemetry-python/blob/06b82aa31f13a064fa5772e05cda7efbfb8bd4a0/opentelemetry-api/pyproject.toml#L9 According to [the docs][1] the valid syntax is one of these: ``` [project] license = {file = "LICENSE"} [project] license = {text = "MIT License"} ``` [1]: https://packaging.python.org/en/latest/guides/writing-pyproject-toml/