Values.BlobMetadataSourceReturns information about a specific Git blob object.
type nonrec t = {blobId : ObjectId.t option;The full ID of the blob.
*)path : Path.t option;The path to the blob and associated file name, if any.
*)mode : Mode.t option;The file mode permissions of the blob. File mode permission codes include: 100644 indicates read/write 100755 indicates read/write/execute 160000 indicates a submodule 120000 indicates a symlink
*)}