Function code_lenses 

pub(super) fn code_lenses(
    file_uri: &Url,
    file_text: &str,
    root: &Path,
    project_cache: Option<&ProjectCache>,
) -> Vec<CodeLens>

Build code lenses for tests and explain targets in the file.

Returns an empty vec if the file is not under models/<db>/<schema>/ or the object is not found in the project cache.