class Net::IMAP::BodyTypeMultipart

message parts, when Content-Type is multipart/*.
Net::IMAP::BodyTypeMultipart represents body structures of messages and

def media_subtype

the value of +subtype+.
generate a warning message to +stderr+, then return
Obsolete: use +subtype+ instead. Calling this will
# 
def media_subtype
  warn("media_subtype is obsolete, use subtype instead.\n",
       uplevel: 1, category: :deprecated)
  return subtype
end

def multipart?

BodyTypeMultipart is used for multipart MIME parts.

:call-seq: multipart? -> true
# 
def multipart?
  return true
end