Gets the front matter data for a given file by its path.
full absolute path to the file.
the Front Matter data of that file.
Stores the front matter for a file, indexed by its full absolute path. If the object for the given path does not exist, it is created first.
the full absolute path to the file.
the data to store.
Stores and retrieves Front Matter data from
FRONT_MATTER_DATA_STORE
.