List returns the list of entries found in a pack file and the length of the header (including header size and crypto overhead).

NewPacker returns a new Packer that can be used to pack blobs together.

Size returns the size of all packs computed by index information.

MaxHeaderSize is the max size of header including header-length field.

InvalidFileError is return when a file is found that is not a pack file.

Packer is used to create a new Pack.