Function complete_git_snapshot_object_graph 

pub fn complete_git_snapshot_object_graph<E>(
    archive_blob: GitSha1ObjectId,
    descriptor_blob: GitSha1ObjectId,
    operation_id: &str,
    created_at_ms: u64,
    hash_object: impl FnMut(GitSnapshotObjectKind, &[u8]) -> Result<GitSha1ObjectId, E>,
) -> Result<GitSnapshotObjectGraphV1, E>
where
    E: From<GitSnapshotError>,

Complete the exact six-object graph after the two potentially streamed blobs are hashed.

Callers must explicitly prove SHA-1 object format before hashing either blob. The callback is then invoked exactly three times for trees, leaf to root, and once for the parentless commit.

Errors

Returns the callback error or a canonical-encoding failure converted into E.