Function git_overlay_pull_execution_facts 

pub fn git_overlay_pull_execution_facts(
    remote: String,
    branch: Option<String>,
    old_git_head: Option<String>,
    new_git_head: Option<String>,
    old_state: Option<String>,
    new_state: Option<String>,
    changed: bool,
    states_created: usize,
    commits_seen: usize,
    materialized_checkout: bool,
    changed_paths: Vec<String>,
) -> PullExecutionFacts

Git-overlay pull / import execution facts.