Function deed 

pub fn deed(
    layout: &Layout,
    id: &str,
    add: &[String],
    remove: &[String],
) -> Result<String>

Cite, drop, or list the deeds an issue’s work produced. The tracker stores the accession only; the deed store owns the bytes. With neither add nor remove, this reads the citations in the order they were cited.

Errors

Returns an error if id is not in the corpus, an added value is not a deed accession, or the file cannot be rewritten.