Multipart.content_type
You're seeing just the function
content_type
, go back to Multipart module for more information.
Specs
Returns the Content-Type header for the Multipart
message.
iex> multipart = Multipart.new("==abc123==")
iex> Multipart.content_type(multipart, "multipart/mixed")
"multipart/mixed; boundary=\"==abc123==\""