Decode - decode a []byte.

FileName - return the OS correct file name from a URI.

NewIdentityReader - The default (identity) encoding; the use of no transformation whatsoever.

NewIdentityWriter - The default (identity) encoding; the use of no transformation whatsoever.

ReadAll - read the body with a Status.

ReadFile - read a file with a Status.

ReadFileWithEncoding - read a file with a possible encoding and a Status.