Function find_matching_recursively_in_dir 

pub fn find_matching_recursively_in_dir(
    dir: &Path,
    matching_file_fn: impl Fn(&DirEntry) -> bool,
    skip_dir_fn: impl Fn(&DirEntry) -> bool,
) -> Result<Vec<PathBuf>>

Recursively find files matching a predicate (breadth-first)

Performs a breadth-first traversal starting at dir, skipping directories for which skip_dir_fn returns true, and collecting file paths for which matching_file_fn returns true.

Errors

• Filesystem I/O error during traversal.