mm-encode-content-transfer-encoding

mm-encode-content-transfer-encoding is a compiled Lisp function in `mm-encode.el'.

(mm-encode-content-transfer-encoding ENCODING &optional TYPE)

Encode the current buffer with ENCODING for MIME type TYPE.
ENCODING can be: nil (do nothing); one of `quoted-printable', `base64';
`7bit', `8bit' or `binary' (all do nothing); a function to do the encoding.